Both are used for energy to the body.
I think the answer to this would be A
Law of Superposition
a basic law of geochronology, stating that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom, each layer being younger than the one beneath it and older than the one above it.
I think the most suitable answer is carbohydrates as it can be monosaccharide, disaccharide or polysaccharide.
