A、Both are fast-moving sports. B、Both depend on good tactics. C、Both provide a lot of exercise. D、Both require a lot of training

M: Hey, Amy, where are you off to?
W: To the Recreation Center. I’ve got a physical education class.
M: What course are you taking?
W: Fencing.
M: Oh, really? Is it hard?
W: I was in the fencing club in high school, so for me it’s mostly review.
M: I once heard someone call fencing "the thinking person’s sport." Would you agree with that?
W: It does require lots of concentration, and if you want to win matches, tactics are important — just like in a game of chess.
M: And I suppose you have to be fast and strong to win.
W: Speed is important, and agility, but you don’t have to be particularly strong to be a good fencer. The main reason I like fencing, though, is that it’s great exercise. I find an hour of fencing is as good a workout workout as, as say, an hour of tennis.