I believe "reasonable" would be the word you are looking for there.
It’s important because your heart must beat faster during exercising because the increase of the heart rate also will need a increase of cardiac output to deliver the necessary blood flow to the muscles.
Hope this help
D. seems the best to me so hope it helps
A - may include physical intimacy
B- involves people who are related by marriage or adoption
You should eliminate empty calories from your diet.
