Which of the Following Is True About Protein as an Energy

Multiple Choice

Which of the following is true about protein as an energy source?

A) Protein is more important than carbohydrate as an energy source for muscular activity.
B) The use of protein as an energy source is greater for endurance athletes than for those who body build or lift weights.
C) Protein and amino acid supplements are needed as energy sources for weight lifters.
D) Protein is a good energy source, supplying 7 kcal per gram.