读一读，选一选：根据上下文的意思将所给的句子安排在对话中的适当位置，将下面的对话补充完整，只写字母编号。

A: Look, this is my family photo.
B: Oh, how nice!                             
A: There are five.
B:                            
A: She’s my mother.
B:                               
A: No, he isn't.
B:                               
A: He’s my uncle.
B: He looks strong.                               
A: He’s a baseball player.
B: Cool!