Answer:
The correct answer will be option-B (fats or lipids)
Step-by-step explanation:
The oxidation of fatty acids provides the most abundant energy that is 9 kilocalories per gram of food as compared to proteins and the carbohydrate which provides only 4 kilocalories per gram of food.
If a person wants to go hiking then, the person would keep the food rich in fatty acids which will provide a high amount of energy and a large amount of heat through the process of respiration.
Thus, Option-B is the correct answer.