Periods of time. in what types of activities should she participate that would most benefit her cardiovascular system? a. endurance exercisesb. strengthening exercisesc. stretching exerci

Hello!

Cardiovascular exercises, or cardio, have to do with endurance and training the heart, blood vessels, and heart. Things like walking, running, biking, and swimming are all cardio exercises.

The answer is a) endurance exercises.

I hope this helps!