What is measured by the amount of time a muscle group can sustain a contraction? A. Muscular endurance B. Muscular strength C. Cardiovascular fitness. D. All of the above

A. Muscular endurance

Explanation:

Muscular endurance is measured by the amount of time a muscle group can sustain a contraction.

any one of the statements could be an accurate comparison. but the statement that would define the correct choice and seal the deal is not even on the list:

"the visibilities of vector-x and vector-y in the drawing provided with the question are identical and nonexistent."

explanation:

could i give you a exaplo that could you?