选择合适的答句。

Chen Jie: Look at the tiger. What is it doing?      

Mike: Shh!                               

Chen Jie: Oh. Two pandas!

Mike:  They are very cute.

Chen Jie:

Mike: It's playing with its mother!

Chen Jie:

Mike: Yes. Look there! The elephant is drinking water.

Chen Jie: It's so big

A. They are eating now.           B. What's the little monkey doing? C. Do you see any elephants?  D. They are drinking water.   E. It's sleeping.