Belinda asked me what I had bought in the sales the week before. This sentence in Direct Speech is:

A. Belinda asked me: “What did you buy in the sales last week?”

B. Belinda asked me: “What have you bought in the sales last week?”

C. Belinda asked me: “What do you bought in the sales last week?”

D. Belinda asked me: “What do you buy in the sales last week?”