The athlete with the highest VO2Max doesn't always have the highest cardiovascular endurance. Why is that?

Select one:

a. Only a lower VO2Max causes higher endurance.

b. Endurance performance is influenced by many other factors including motivation, muscle glycogen, and muscle mass. 

c. The greater someone's VO2Max is, the less aerobically fit they are.

d. VO2Max is difficult to understand and not widely used to evaluate cardiovascular fitness.