HOW WAS SON DOONG CAVE FIRST DISCOVERED

27) How was Son Doong Cave first discovered?

A. Ho Khanh found out it accidentally when he was seeking shelter from a passing storm in the jungle in 1990.

B. In 2008 while hunting for food, Ho Khanh stumbled across the entrance of the Cave.

C. Ho Khanh reported his findings to the British Caving Research Association and they discovered it.

D. Howard and Deb Limbert from the BCRA discovered it in 2008.