The Leg Muscles of a Sprinter Would Differ from a Marathon

Multiple Choice

The leg muscles of a sprinter would differ from a marathon runner in that ________.

A) per gram, the sprinter's muscles would have more mitochondria than the marathon runner's muscles
B) per gram, the marathon runner's muscles would contain more myoglobin than the sprinter's muscles
C) the marathon runner's muscles would have a greater rate of contraction than the sprinter's muscles
D) per gram, the sprinter's muscles would use more oxygen than the marathon runner's muscles