Which of the following is only a muscle-strengthening activity that can be completed in school?

You can also add the answer options makes it a lil easier for the helpers, but im guess anything that revolves around PE like Push-ups, Sit-ups, and etc. I don't think running or jumping since they're not MUSCLE-STRENGTHENING.

sit-ups

Explanation:

answer; ///i believe the answer is (antioxidant);