Select the Correct Statement About Proteins

Select the correct statement about proteins.

A) Proteins will be used by most cells for ATP synthesis if insufficient carbohydrates are ingested.
B) All proteins can be synthesized in the body if most of the amino acids are present.
C) Strict vegetarians need not worry about adequate protein intake, as most vegetables are almost perfect sources of amino acids.
D) Catabolic steroids (hormones) accelerate the rate of protein synthesis.