Which is the correct FIT formula for calisthenics?
A. 3-6 days per week, lift part or all of the body weight, 1-3 sets of 25 reps
B. 2-3 days per week, lift part or all of the body weight, 1-3 sets of 25 reps
C. 3-6 days per week, lift part or all of the body weight, 1-3 sets of 10 reps
D. 2-3 days per week, lift part or all of the body weight, 1-3 sets of 10 reps