When you enumerate you need to put comas between all the items except the ones which are connected by "and" : as A is not correct as it does not have comas, and B is incorrect as it has comas where "and" is.
now, in a way both C and D are correct, but C is the usual accepted version, and D is an example of "Oxford coma" (where the coma is optional, to remain on the safe side, choose C).
Answer: adrenaline
Explanation:
a jolt of energy look it up
Answer:
It means don't conform just if other people are doing it stay true to what you believe.
Explanation:
That's just my interpretation but it could mean different things. I hope that helps!