A、10 weeks. B、20 weeks. C、12 weeks. D、13 weeks. CHow long does this course last?

W: Good evening. Which evening class would you like to enroll for?
M: I’ve been thinking of taking the course on Modern Music. Are there any vacancies?
W: Well, let me see... We’ve got four places left.
M: Will it be starting next week?
W: We hope so. It will begin on next Tuesday, 7:00 p.m. to 9 p.m. Shall I put you down?
We’ll have stopped taking any more names by the end of this evening, so if you...
M: Can you tell me where this course is held?
W: Oh, it’s in the main block building, second floor, room 219.
M: How much is this all going to cost?
W: Er... the course fee is $ 26.50 a term. That’s twelve weeks.
M: It sounds nice. All right, count me in.