A、They need two more participants for the research. B、They haven’t found enough participants so far. C、All the people they have

M: Betty, fancy seeing you here. I didn’t know you took the subway.
W: I don’t usually. It’s just that I’m fed up with driving and paying so much for gas, and the buses are crowded and unreliable. So I thought I’d give this a try.
Q: What does the woman say about the transport means?

M: Hi Jane. Do we have enough participants for the research panel yet?
W: No, we need three more. We’re looking through our data base and phoning people who meet the criteria. But so far they either don’t qualify or aren’t available.
Q: What do we learn from the conversation?