19. Sales clerk: May I help you?
Mrs. Chen: Yes. Can I take a look at that sweater in the window?
Sales clerk: Sure.__________
Mrs. Chen: No, the blue one.
Sales clerk: Oh! The man’s sweater.
Mrs. Chen: That’s right. It’s for my husband.
(A) By credit card or cash?
(B) Is it really cold outside?
(C) Did you say the blue one?
(D) The pink one or the red one?