From the excerpt, it appears that states like California ban cigarette counter displays especially so as not to appeal to young people to smoke since they, unlike adults may not be so aware of the dangers of smoking to human health ie to the risk of lung cancer so I would say this would be the main reason.
Metabolism is the process by which a cell converts nutrients into energy or materials. The conversion of nutrients into energy is called catabolism. For example, glucose is the cell's main source of energy.
I believe it’s C it delivers more oxygen to the body
Well, an athlete's vital capacity will be stronger and can withstand more movement and pressure. and a non- athlete's vital capacity will not change it will stay the same which is a little strong and a little week and it probably can't withstand movement and pressure.