Q:Information:  - Nantou County is the second largest county of Taiwan. It is also the only landlocked county in Taiwan. Its name derives from the Hoanya Taiwanese aboriginal word "Ramtau". Nantou County is officially administered as a county of Taiwan Province.  - Caotun Township is an urban township in the northwest of Nantou County, Taiwan.  - Provincial Highway 63 ( Chinese : 63 ) is an expressway , which begins in Taichung City at the intersection of Guoguang Road ( Provincial Highway No. 3 ) and Zhongming South Road and ends in Caotun , Nantou on Bixing Road ( Provincial Road 14B ) . It is commonly known as Zhongtou ( Taichung - Nantou ) Expressway .  - Taiwan, officially the Republic of China (ROC), is a state in East Asia. Neighbors include China (officially the People's Republic of China, abbreviated as PRC) to the west, Japan to the northeast, and the Philippines to the south. Taiwan is the most populous state that is not a member of the United Nations, and the one with the largest economy.    After reading the paragraphs above, we are interested in knowing the entity with which 'provincial highway 63 ' exhibits the relationship of 'country'. Find the answer from the choices below.  Choices: - china  - east asia  - taiwan
A:
taiwan