Question

which nutritional class builds and maintains cells and tissues?
○ fats
○ water
○ proteins
○ carbohydrates

Explanation:

Fats are for energy storage and insulation. Water is for hydration and cellular processes. Proteins are the main nutrients for building and maintaining cells and tissues (e.g., muscle, enzymes). Carbohydrates are for energy. So the correct option is proteins.

Answer:

C. proteins (assuming the options are labeled A: fats, B: water, C: proteins, D: carbohydrates; if labels differ, adjust to match the actual option text with its identifier)