The four sources of calories are

A. carbohydrates, fats, sugars, and cholesterol.

B. carbohydrates, proteins, fats, and sugars.

C. carbohydrates, proteins, fats, and alcohol.

D. carbohydrates, fiber, fat, and vitamins.

Correct answer is B, Carbohydrates, Proteins, Fats and Sugars.

Four sources of calories or energy are Carbohydrates, Proteins, Fats and Sugars.

A balanced diet must contain appropriate amount of these four elements. In order to stay healthy and live a healthy life, we need to take these nutrients in a balanced manner.

Carbs include rice, breads, grains, etc. Proteins include Meat, poultry, fish, cereals, eggs etc. Fats include Butter, oils etc.