I think that the answer is b:develop a new machine for diagnostic pairtnts
Start by drinking water when you are hungry.
Your body may feel hungry but often times a cup of water will do the trick.
I don't mean skip meals. But perhaps you just ate lunch and are wanting that bag of chips, substitute the water for the chips.
Measured by how well he or she does the job
Jerry's goal is to increase his arm strength look at these entries in his workout log and determine which principles of training is he most likely focusing on in order to reach that goal.
Jerry is focusing on doing reps to improve his arm strength.