Will upvote!
question 10 (multiple choice)

lucy wants to get in shape for the dance next spring, and she has calculated her target heart rate at 141—179 beats per minute. lately when she plays tennis, her heart rate reaches 130 beats per minute. which of the following could she do to get a greater benefit during tennis?

a) move more slowly and less often
b) move more quickly and frequently
c) swing level at the ball
d) swing with more control