Answer:
I believe your answer is D. All of the above.
She can continue progression in lower body strength by either A) adding weight to her set of squats, or B) adding more repetitions to her set of squats. This will continue to stress her lower body muscle, causing it to grow in response to the increased work load.
I believe the answer is B, although im not exactly sure what a skin fold test is for, im sure this is the right answer.
They all do in some way but if I had to pick one I would go with culture
