I believe it is Dopamine, I could be wrong tho.
It's C because insoluble fiber is not harmful to the cardiovascular system.
Proteins are large, complex molecules that play many critical roles in the body. However, the body does not use proteins to perform the following process: Creating amino acids. Correct answer: D
Amino acids, as proteins are building blocks of life. The human body uses amino acids to make proteins to help the body: grow, fight infections, break down food...
Carbohydrates are in place of simple sugars and complex carbs which either are quick energy or stored energy for performance. Without carbs, the body will shut down because you need sufficient energy to keep going. Carbs are what keeps you moving and functioning.