Residents of Wealthy Countries Tend to Have Longer Life Expectancies

Residents of wealthy countries tend to have longer life expectancies because

A) the residents of wealthier countries tend to work harder than those in poor countries.
B) the government meets all health care needs in wealthy countries.
C) higher per capita real gross domestic product (GDP) growth rates allow for more spending on health care.
D) consumers in wealthy countries face lower health care costs.
E) the residents of poor countries have no desire to consume health care.