When he was told that he was to go down into the water, the writer had to sit down probably because（）.

When he was told that he was to go down into the water, the writer had to sit down probably because（）.

A.

he could not control his shaking legs

B.

he wanted to have a better look at the water

C.

he wanted to get ready for the underwater adventure

D.

he could not help asking Doctor Bonbon some questions

正确答案是A