<span>the ability of the heart and lungs to supply oxygen to the body</span>
Hey ...
The answer is D. He is using muscular strength.
Hope this helps!
Cigarettes are items that you use for inhaling smoke produced by them. Smokeless tobacco serves other purposes than inhaling smoke, including chewing it, or sniffing it.
I think it's B(Im not sure on that one) C D and maybe E I'm sorry if I'm wrong
