M: Could you tell me the timetable of the school bus? W: Well, the bus leaves here for the campus every two hours from 7:00 a.m.. But on Saturdays it starts half an hour later., Question: When does the second bus leave on Saturdays? (A) At 9:30 (B) At 8:30 (C) At 9:00
(A) At 9:30