dialogue: W: I need a bike to get to my new job. How much does this one cost? M: That bike is the cheapest one we have, and it costs $200. But this bike is much better and costs $220. W: Thanks, but I'll take the cheaper one. I also want this helmet that costs $30.
question: How much will the woman spend?
choice: $220. $230. $250.
answer: $230.