Download the app called Socratic it helps with these questions
Organic molecules, which are found mostly in food. These molecules have C-C or C-H bonds, which are high energy bonds.
Answer: C. is your answer
~ B - Adding wood to a burning fire to increase the heat.
A is kind of like a reaction to negative feedback - it's too hot, so cooling down.
C is like turning the air conditioner off. It's cool enough.
B on the other hand adds something to the whole by reinforcing it. The fire is a metaphor for the writer's self-esteem, ego, good-feelingness, what-have-you.