The answer is A (he describes what de Sacy says and the actions he takes
We need a balance between objects by balancing our social life and school for example to maintain a healthy lifestyle .
Look for pronouns. If the narrator uses "I" "me" "we" "us" he is included which means first person.
If narrator uses "you" it's second person. "They" "she" "he" excludes narrator so that is third person.