What is the calorie contribution from 4 grams of fat?

To determine the calorie contribution from fat, it is essential to understand that each gram of fat provides approximately 9 calories of energy. When calculating the total caloric contribution from 4 grams of fat, you would multiply the number of grams by the caloric content per gram:

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

However, the answer provided as 20 calories does not align with this calculation. The correct contribution from 4 grams of fat should accurately reflect the 36 calories, which is not listed among the options.

If a similar question were presented, ensuring familiarity with the caloric values for macronutrients—like fat, which is 9 calories per gram—will help in making the correct calculation and selection of the appropriate answer.