根据对话内容，从方框内的选项中选出能填入空白处的最佳选项

A. What's that?

B. What color is it?

C. Morning, Tony.

D. Spell it, please.

E. How are you?

Tony: Good morning, Gina.

Gina:       

Tony:

Gina: I'm OK. Thank you.

Tony:

Gina: It's a jacket.

Tony:

Gina: J－A－C－K－E－T, jacket.

Tony:

Gina: Yellow.

Tony: Thank you very much.

Gina: You're welcome.