—Have you seen your aunt lately?

—Yes, in fact I saw her yesterday．I ______ her for several months．

A．haven't see

B．didn't see

C．hadn't seen

D．don't see

某企业销售商品5 000件，每件售价100元（不含增值税），增值税税率为17％；企业为购货方提供的商业折扣为10％，提供的现金折扣条件为2/10、1/20、n/30，并代垫运杂费500元。该企业在这项交易中应确认的收入金额为（　　）元。

A．526 500

B．450 000

C．500 000

D．450 500