ive had this a few times as well so here is your answer
Hunger pangs, or hunger pains, are caused by strong contractions of the stomach when it's empty. ... They may be caused by an empty stomach and a need or hunger to eat, or they may be caused by your body being in a routine of eating certain amounts of food or eating at specific times of day.Oct 23, 2017
1. Water
Water is not a macronutrient because water has no calories
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>