Athletes can decrease their chance of injury by stretching. when should they stretch? a. they should stretch before their warm up and before their main exercise. b. they should stretch before their warm up and after their main exercise. c. they should stretch after their warm up and before their main exercise. d. they should stretch after their warm up and after their main exercise.

the answer would have to be A

Explanation:

reason being is because to exercise after the main exercise would make no sense. stretching after the warm up  and before the main exercise also sounds logical but still does not make any sense. stretching after both the warm up and main exercise would be really pointless and the point of stretching is to loosen up and get prepared to do the exercises given to you  

answer; first the above statement is correct and the answer you are looking for is (energized); ///good luck

a progressive heart disease that affects pumping action of the heart muscles.