In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).

Context: Costa Rica (literally meaning "Rich Coast"), officially the Republic of Costa Rica, is a country in Central America, bordered by Nicaragua to the north, Panama to the southeast, the Pacific Ocean to the west, the Caribbean Sea to the east, and Ecuador to the south of Cocos Island. It has a population of around 4.5 million, of whom nearly a quarter live in the metropolitan area of the capital and largest city, San José., A continent is one of several very large landmasses on Earth. Generally identified by convention rather than any strict criteria, up to seven regions are commonly regarded as continents. Ordered from largest in size to smallest, they are: Asia, Africa, North America, South America, Antarctica, Europe, and Australia. In geology, areas of continental crust include regions covered with water., Panama, officially called the Republic of Panama, is a country usually considered to be entirely in North America or Central America. It is bordered by Costa Rica to the west, Colombia (in South America) to the southeast, the Caribbean Sea to the north and the Pacific Ocean to the south. The capital and largest city is Panama City, whose metropolitan area is home to nearly half of the country's 3.9 million people., Central America is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. Central America is bordered by Mexico to the north, Colombia to the southeast, the Caribbean Sea to the east, and the Pacific Ocean to the west. Central America consists of seven countries: Belize, Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica and Panama. The combined population of Central America is between 41,739,000 (2009 estimate) and 42,688,190 (2012 estimate)., A true toad is any member of the family Bufonidae, in the order Anura (frogs and toads). This is the only family of anurans in which all members are known as "toads", although some may be called frogs (such as harlequin frogs). The bufonids now comprise more than 35 genera, "Bufo" being the most widespread and well known., Anaxyrus is a genus of true toads native to North and Central America . Some authors have recognized Anaxyrus as a subgenus , but this makes the rest of Bufo paraphyletic . The meaning of the name was not explained by its author , Tschudi . It is speculated to be composed of the Greek anax ( `` leader , chief '' ) and urus ( `` tail '' ) ; or of the privative prefix an - and axyr ( `` being cut '' , `` an anchor '' ) or ax ( `` axel '' ), Guatemala (, or ), officially the Republic of Guatemala, is a country in Central America bordered by Mexico to the north and west, the Pacific Ocean to the southwest, Belize to the northeast, the Caribbean to the east, Honduras to the east and El Salvador to the southeast. With an estimated population of around 15.8 million, it is the most populated state in Central America. A representative democracy, Guatemala's capital and largest city is Nueva Guatemala de la Asunción, also known as Guatemala City., Mexico (, modern Nahuatl ), officially the United Mexican States, is a federal republic in the southern half of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Covering almost two million square kilometers (over 760,000 sq mi), Mexico is the sixth largest country in the Americas by total area and the 13th largest independent nation in the world. With an estimated population of over 120 million, it is the eleventh most populous country and the most populous Spanish-speaking country in the world while being the second most populous country in Latin America. Mexico is a federation comprising 31 states and a federal district that is also its capital and most populous city. Other metropolises include Guadalajara, Monterrey, Puebla, Toluca, Tijuana and León., Subject: anaxyrus, Relation: parent_taxon, Options: (A) area (B) areas (C) bufonidae (D) cocos (E) la
bufonidae