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

A. Running
B. Sit-ups
C. Jumping
D. Stretching



Answer :

Final answer:

Muscle-strengthening activities like sit-ups enhance muscle strength, while running and jumping primarily focus on bone health.


Explanation:

Muscle-strengthening activities are crucial for improving muscle strength and involve exercises like sit-ups that target major muscle groups. While running is a bone-strengthening activity, jumping contributes to bone growth and strength.


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