Generally it can either be ones feelings about oneself or ones past experiences, usually the two link in some way
Answer:
A. Skills
Explanation:
However, nutrition seems most important all around, skills seems to fit into more of what is being said in the question.
The mastery hypothesis: the mere fact that they are exercising makes patients feel like they have achieved something, cheering them up much as learning a new hobby or achieving a certain goal might cheer them up.
That sounds like B to me.
The EMT should obtain a manual blood pressure. This is necessary in order to confirm that the initial reading is not a mistake. The accuracy of the automatic BP cuff has to be checked by comparing it to the manual reading. Appropriate steps are to be taken by the EMT depending on the reading obtained in the manual reading.