A、It is more expensive to take a train to Ohio. B、Flying to Ohio can’t save the woman much time. C、The woman has decided to fly

M: You see, a marine biologist is now appearing on the screen.
W: Yeah. We are now being taken on a tour familiarizing with life in the salty depth. It’s an interesting tele teaching lesson.
Q: What are the speakers doing?

M: Of the two ways for us to go to Ohio, which one do you prefer, by train or by air?
W: Though expensive, taking a flight will save us plenty of time on the way.
Q: What can we conclude from the conversation?