dialogue: W: The Painting Club. Can I help you? M: Yes. I'd like to ask about the painting classes. W: OK. We have some classes starting the week of February 20th lasting seven weeks and meeting twice a week. M: How much does it cost? W: $140. That's $10 for each lesson. M: How much does it cost if I am a member of the Painting Club? W: It's half price. Members pay half. M: I see. W: And classes start in February. You can come to put down your name on February 16th or 17th if you have decided to attend the classes. M: Thanks. W: You are welcome.
question: On which day of February will the painting class start?
choice: 16th. 18th. 20th.
answer: 20th.