The correct answer for the question that is being presented above is this one: "A. men naturally have more muscle mass than women and thus need more energy to function." Men and women, regardless of weight, will have different daily energy requirements because <span>men naturally have more muscle mass than women and thus need more energy to function.</span>
You should not exercise in the cold because it's really bad for your bones, and you will get dehydrated and pass out if you're exercising in extreme heat.
