对于氨水的组成的叙述正确的是[ ]

A．只含有氨分子和水分子　　　　　　　　　

B．只含有一水合氨分子和水分子　　

C．只含有氨分子、水分子和一水合氨分子　　

D．含有氨分子、水分子、一水合氨分子、铵根离子和氢氧根离子

Woman: Doctor, what’s wrong with my father

Man: He’s in pretty good shape, considering.

Question: What do we learn from the dialogue().

A. Her father is very sick.

B. There is nothing serious with her father.

C. Her father is an athlete.

D. The man is not sure about her father’s condition.