(单选题)

The national parks in the U.S. ______.

A.are the nation’s main tourist attraction

B.have one story teller for each park

C.are popular across the nation

D.cover a few of its states

参考答案：C

参考解析：

细节理解题。根据第四段前三句“From beautiful lands and mountains to historical and cultural places, national parks can be found in all 50 states across the U.S. The parks had nearly 293 million visits in 2014. The Golden Gate Park in San Francisco was the most popular with 15 million visits.”可知，国家公园在全国都很受欢迎。故选C。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语