In One Meal a Person Ate 500 G of Carbohydrates

In one meal a person ate 500 g of carbohydrates, 100 g of protein, and 0 grams of fat. The total Calorie consumption in that meal was ____ Calories.

A) 1,270
B) 1,580
C) 3,500
D) 2,400
E) None of the above.