Our body needs all 5 nutrients - protein, carbohydrate, fat, vitamins and minerals. However, protein is the nutrient is needed for proper growth and development. Correct answer: C
Proteins are needed to build, maintain and repair muscle, blood, skin and bones and other tissues and organs in the body. The main sources of animal proteins are milk, fish, meat, cheese and eggs. Large amount of protein is needed for building new tissue in short period, such as during infancy, pregnancy or when mother is nourishing a child.