Jerry's goal is to increase his arm strength. Look at these entries in his workout log and determine which principle of training he is most likely focusing on in order to reach that goal.
Tuesday
4 reps @ 15 lbs
Wednesday
Yoga class
Thursday
5 reps @15 lbs
Friday
30-minute easy run
Saturday
6 reps @15 lbs
Sunday
Rest
A)Time
B)Overload
C)Reversibility
D) Progression