听力材料中获取关键信息 — 英语选择题

听下面的对话，抓住关键信息，选出正确答案。 听力材料：Anna: Hi, Mark! The art show opens at 3:00 this Saturday, right? Mark: No, that's the music show. The art show starts an hour and a half earlier, at the City Gallery on Green Street. 问题：The art show starts at ______ this Saturday. A. 1:30 B. 3:00 C. 4:30 D. 2:00