The seminar is from 4.30 to 6.00 with time allowed for questions from the audience. Refr
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The seminar is from 4.30 to 6.00, with time allowed for questions from the audience. Refreshments are served at 6.00.
A．The speaker will respond to questions if time allows.
B．There will be time to ask questions during the seminar.
C．It will save time if questions are left until refreshments are served.
请帮忙给出正确答案和分析，谢谢！