A food contains 12 grams of carbohydrates, 4 grams of fat, and 6 grams of protein. How many calories does this food provide?

To calculate the total calorie content of the food, it is necessary to know how many calories each macronutrient provides:

• Carbohydrates provide 4 calories per gram.

• Protein also provides 4 calories per gram.

• Fat provides 9 calories per gram.

Now, you can perform the calculations for each macronutrient in the food:

1. For carbohydrates:

12 grams x 4 calories/gram = 48 calories from carbohydrates.

2. For protein:

6 grams x 4 calories/gram = 24 calories from protein.

3. For fat:

4 grams x 9 calories/gram = 36 calories from fat.

Now, summing all these values together gives you the total calorie content:

48 calories (from carbohydrates) + 24 calories (from protein) + 36 calories (from fat) = 108 calories.

This final total matches the correct answer, which is 108 calories. Thus, the correct option reflects a comprehensive understanding of how to calculate the energy content of food based on its macronutrient composition.