The best way to start a statement on your resume is with

I believe it would be Option A

Explanation:

I'm not really sure but what I think is that nobody will hire you if you don't use I or My

C

Explanation:

You want to use keywords and action words to grab the employers attention

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.