Fats have more carbon and molecular mass than carbohydrates that's why during beta-oxidation fats result in the formation of a double amount of energy compared to carbohydrates. Thus option B is correct.
What are fats, carbohydrates, and proteins?
Fats, carbohydrates, and protein are macro-biomolecules that undergo oxidation to produce energy such that one gram of fats results in the production of about 9 K calories while on the other hand side one gram of carbohydrates and protein make about 4 Kcalories.
So the amount of energy from fat (9) is two times of carbohydrates and protein (4). So option B is correct.
Learn more about calories, here:
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