Young age teens getting into stuff that they should wait on till they are grown adults!
You should stop and stretch or walk around, just cool off and loosen your muscles. If you are lifting weights and you feel pain, then maybe the weight is to heavy.
The correct answer is B :)
Regular exercise and physical activity promotes strong muscles and bones. It improves respiratory, cardiovascular health, and overall health. Staying active can also help you maintain a healthy weight, reduce your risk for type 2 diabetes, heart disease, and reduce your risk for some cancers.