answer:
um wheres the site or photograph attachment
Explanation:
with out the required tools this question cannot be answer
A is the answer fair and objective
The answer is B.. If u can not talk while exercising it it too intense..you need to be able to do simple things while exercising..
I believe the answer you are looking for is "case study"
A case study is a publication of an experience conducted over an amount of time. It could be based on behavior for each or a group.
