I would say A. HMO hope this helps
Individuals should participate in Aerobic exercises to increase cardiovascular endurance. (There's more exercises than just running that can increase your cardiovascular endurance, aerobic is more of a group of activities that do such)
Since no human is breathing anymore, the Carbon di-oxide cycle will be affected. In fact, many natural cycles will become free from human disturbance.
D. Type II diabetes.
Obesity is a major risk factor for type II diabetes.