C. Carbon provides structure and ethics the function of a cell
Explanation:
Carbon is the element that forms the skeletal structure of all the organic biological compounds in the cells. Basically, the vast majority of essential molecules for the cell are composed of carbon. When Carbon is combined with other molecules like oxygen, hydrogen, Cabon forms essential compounds for the maintenance of life, including sugars, alcohols, fats, aromatic esters, carotenoids etc. In fact the carbon composes the cell itself since it forms the basic structures of the cell membrane: Cholesterol, Phospholipids, Carbohydrates.
I would say that answer choice C is the best out of this selection. Carbon is the main element in organic compounds, and organic compounds just so happen to make up the cells that carry out life processes for all living things. Hope this helps.
