One System of Rating Food Is to Determine Its Energy

Multiple Choice

One system of rating food is to determine its energy density in kcal/g.If your 200 g snack contains 100 g fat (900 cal/g) and a total of 100 g of protein and carbohydrates (400 cal/gram) .what is its energy density?

A) 1.3 kcal/g
B) 6.5 kcal/g
C) 9.0 kcal/g
D) 13 kcal/g