Which of the Following Athletes Will Use the Least Amount

Which of the following athletes will use the least amount of protein as fuel during exercise?

A) Joe, who is an endurance athlete and consumes a protein-rich diet
B) Charles, who is an endurance athlete and consumes a fat-rich diet
C) Gary, who is an endurance athlete and consumes a carbohydrate-rich diet
D) Rick, who is in a strength-training program and consumes a diet rich in branched-chain amino acids
E) Trey, who is in a strength-training program and consumes a high-carbohydrate diet