which macronutrient is vital for every function of the body? a. water b. fats c. proteins d. carbohydrates…

Brief Explanations:

Proteins are essential for the structure, function, and regulation of the body's tissues and organs. They are involved in almost every bodily process such as enzyme - catalyzed reactions, immune responses, and muscle contraction. While fats, carbohydrates, and water are also important, proteins have a more comprehensive role in body functions.

Answer:

C. proteins