Dionne was very excited to start working on her new fitness plan, so she started riding her bike 17 miles a day, every day. after a week, she was feeling very tired and her muscles were sore. what is the best thing dionne can do to prevent this problem in the future?
a)give up on her program and find something new because it is not working
b)immediately decrease the duration of her workouts because she isn't strong enough
c)significantly increase the intensity of her workouts to work her body much harder
d)adjust the frequency of her workouts to add time for rest and recovery