A. The use of youth-produced slang became more common.
The adverb profoundly means something similar to “extremely,” with the additional sense that it's something intense and deeply felt. If you're profoundly confused, you're very confused — confused in a way that seems bottomless. The word can also describe something that affects you greatly.
4 they name ways that skin is important to the body’s health
I believe it going to be A.
