Regarding fat, which of the following statements is correct?

Correct option is D

Sol. 1 gram of fat provides 9 kcal of energy, making it the most energy-rich macronutrient. This is why fats are efficient energy reserves in the body and essential for absorbing fat-soluble vitamins (A, D, E, and K).
Explanation of each option: • (a) 15 kcal – Scientifically incorrect. No nutrient provides this much energy per gram. • (b) 11 kcal – Also incorrect; exceeds the standard energy value of fats. • (c) 16 kcal – Incorrect and misleading. No natural macronutrient yields 16 kcal per gram. • (d) 9 kcal – Correct. Fat provides 9 kcal/gram, compared to 4 kcal for proteins and carbs.