a recent published article on human physiology claims that enzyme K contributes to improved performance in strenuous activities such as weightlifting and sprinting. the article cites evidence of above average levels of enzyme K in Olympic weight lifters and sprinters.

which of the following if true would most strengthen the articles conclusions?

A. Enzyme K levels are the most important factor affecting the performance of strenuous activities
B. Enzyme K has no other function in the human body
C. Enzyme K is required for the performance of strenuous activities
D. Enzyme K helps weight lifters more than it helps sprinters.
E. Strenuous activities do not cause the human body to produce unujsually high levels of enzyme K