Read the following text and choose t...

Câu hỏi: Read the following text and choose the best answer.

A. It was discovered by a local man named Ho Khanh.

B. A live programme featuring its magnificence was broadcast on ‘Good Morning America’ by the American Broadcasting Company (ABC).

C. It became known internationally thanks to British cavers, led by Howard Limbert. ABC).

D. It was explored by the first tourist group.