<span>The option that best describes their heart rates during this activity is A. low. They aren't doing much at that particluar moment - they are just walking around, talking and laughing. There isn't much there to rise their blood pressure and thus heart rate, which remains low. Moderate, vigorous, and dangerous heart rates would require much more vigorous activities. </span>
Stabilizing selection... I think it might be right if I'm wrong, sorry if I am.
Answer:
To increase muscular endurance through exercise, you will need to perform exercises with low weight and complete a high number of repetitions. Push-ups are upper body muscular endurance exercises that target your chest and arms specifically.
Explanation: Don't like my answer? Let me know!
B. may sound like the answer but it also could be D.