We might conclude that Joe is more Muscular.
If we're talking about the amount of the hits , it simply come down to technique and concentration.
But if we're talking about distance ( especially if there is a huge difference) It's very likely that it because of the difference in strength. All professional baseball player have a solid upperbody and core strength
Hmmm...
A and D are wrong.
Both B and C are technically correct, but in the case of athletes...since exercise is proven to strengthen the heart and in turn decrease the heart rate...
B is the best answer.
Have a nice day!