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: Yugoslavia (/, ) was a country in Southeast Europe during most of the 20th century. It came into existence after World War I in 1918 under the name of the Kingdom of Serbs, Croats and Slovenes by the merger of the provisional State of Slovenes, Croats and Serbs (itself formed from territories of the former Austro-Hungarian Empire) with the formerly independent Kingdom of Serbia. The Serbian royal House of Karaorevi became the Yugoslav royal dynasty. Yugoslavia gained international recognition on 13 July 1922 at the Conference of Ambassadors in Paris. The country was named after the South Slavic peoples and constituted their first union, following centuries in which the territories had been part of the Ottoman Empire and Austria-Hungary., Nikola Gabrovski ( Bulgarian :   ) was a Bulgarian military figure and a colonel in the Bulgarian army . He was born in the village of Krushevo ( present - day Republic of Macedonia ) in 1871 and died in 1962 in Sofia . He studied in a gymnasium and then in the `` Vasil Levski National Military School '' in Veliko Tarnovo . Gabrovski took part in all three of the so - called `` Wars of National Unification '' - the First and Second Balkan and the First World War . He became a member of the `` Union of Macedonian brotherhoods '' in 1924 . He has been awarded numeral medals and honors during his military career . Today , one of the main streets in Veliko Tarnovo bears his name ., Macedonia ( tr. "Makedonija"), officially the Republic of Macedonia (Macedonian: , tr. "Republika Makedonija"), is a country in the Balkan peninsula in Southeast Europe. It is one of the successor states of the former Yugoslavia, from which it declared independence in 1991. It became a member of the United Nations in 1993, but, as a result of an ongoing dispute with Greece over the use of the name "Macedonia", was admitted under the provisional description the former Yugoslav Republic of Macedonia (sometimes unofficially abbreviated as FYROM and FYR Macedonia), a term that is also used by international organizations such as the European Union, the Council of Europe and NATO., The United Nations (UN) is an intergovernmental organization to promote international co-operation. A replacement for the ineffective League of Nations, the organization was established on 24 October 1945 after World War II in order to prevent another such conflict. At its founding, the UN had 51 member states; there are now 193. The headquarters of the United Nations is in Manhattan, New York City, and experiences extraterritoriality. Further main offices are situated in Geneva, Nairobi, and Vienna. The organization is financed by assessed and voluntary contributions from its member states. Its objectives include maintaining international peace and security, promoting human rights, fostering social and economic development, protecting the environment, and providing humanitarian aid in cases of famine, natural disaster, and armed conflict., Subject: nikola gabrovski, Relation: conflict, Options: (A) world war (B) world war i
world war i