<span>I think it would be an example of : B. Specificity
Specifity refer to a principal that stated that What you don in your workout should be relevan;t to what you wanted to achive.
In this case, Jimmy want to improve muscular strength in his arms. Therefore he specified on training the muscles in his biceps.Hope this helps. Let me know if you need additional help!</span>
That statement is true
Aerobic exercises refers to the type of exercise that force your cardiovascular system to put more intense work compared to your usual state. This type of exercise is really good to prevent heart related diseases, massively increase your stamina, and tend to burn the most calories compared to other type of exercies.
So in many cases they can offer finacial assistancee to low-income patients.