Which of the following is the correct way to warm up?
• A. Run for 10 minutes, and then do some (static) stretches.
• B. Do 15 jumping jacks, jog for 5 minutes, and then do some (static) stretching.
• C. Walk for 15 minutes, jog for 10 minutes, and then run for 5
minutes.
• D. All of the above.