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