选择适当的句子补全对话

Ms White:

Ben: Yes, it is.

Ms White:

Ben: He's my grandfather.

Ms White:

Ben: Oh, yes.

Ms White: She's beautiful!

Ben: Thank you.

Ms White:

Ben: Haha, it's me.

A. Who's the little baby? B. Is this a photo of your family? C. Who's the old man? D. Is the young lady your mother?