I'd personally say B because a warmup will reduce injury, soreness, and get you ready. Then you have your exercise. Then the cooldown helps <span>bring the heartrate down to near-normal and to get the blood circulating freely back to the heart. Stopping abruptly could result in fainting or place undue stress on the heart.</span>
Inward then upward, C! I know somebody already answered, but I'm just confirming that answer is correct as I took a class in this sort of stuff! :)