The amounts of mood-elevating chemicals in the brain are

a. nonexistent in sedentary people but not in those who are physically active.
b. the same in sedentary people and in those who are physically active.
c. lower in sedentary people than in those who are physically active.
d. higher in sedentary people than in those who are physically active.

the second one is wrong

explanation:

if your boyfriend is cheating on you, my best advice to you is to dump him, he's only going to drag you down. and if you do, don't fret there's plenty better that know how to treat a person right. i mean honestly, the whole point of a romantic relationship is love, and if you love someone you aren't going to cheat on them. i do believe in second chances, but why would he cheat in the first place? i personally feel that if someone cheats, they ruin any chance they wanted/had with you. i wish you the best of luck with this, hang in there.