19. Mary: How much are these pants?
Sales: Three thousand dollars.
Mary: Wow, that’s too expensive.____ .
Sales: I’m sorry, these pants are on sale and the tag price is 40 % off the regular price already.
(A) A size four shirt, please.
(B) Is there any discount?
(C) Do you take a rain check?
(D) I would like a refund, please.
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