I believe the answer is C. This is because most men do naturally have more muscle mass, so they need more energy to function. This is not the case if you do a lot of muscle building activities, though.
        
             
        
        
        
Answer:
1) Most people with anxiety or depression are often too afraid to seek help, because they are afraid to be judged and or too scared to openly ask for help when they need it.
2) An external factor would be expectations of friends, in our society people are often more scared to be open about their feelings or seeking help.
3) Some changes would be, getting people more personal counselling. Or making appointments to see their family doctor to seek help if they're too afraid to seek help from (example,) friends, family, teachers, grandparents. 
Explanation:
sorry if my answer doesn't answer your questions, as a person who suffers from anxiety and depression these are the most simple ways i could explain. :D
 
        
             
        
        
        
It can damage nearly every organ in the body, including the lungs, heart, blood vessels, reproductive organs, mouth, skin, eyes, and bones. 
Smoking damages the airways and small air sacs in your lungs. This damage starts early in smokers, and lung function continues to worsen as long as the person smokes. Still, it may take years for the problem to become noticeable enough for lung disease to be diagnosed.
Smoking makes pneumonia and asthma worse. It also causes many other lung diseases that can be nearly as bad as lung cancer.