You eat 25 potato chips, which contain 10 grams of carbohydrate (potato) and 10 grams of fat. This means that

A) about 40 Calories are from fat and 90 Calories are from carbohydrate.
B) all of the calories are from carbohydrate.
C) about half your calories are from fat and half from carbohydrate.
D) about 90 Calories are from fat and 40 Calories are from carbohydrate.
E) all of the calories are from fat.