All of the following are mentioned in the passage as factors affecting the health of the population EXCEPT ______.

A．What is the most powerful influence on the health status of a country's population
B．Which nation in the world leads in health status
C．Is the life expectancy of males in the U.S. longer than that of females
D．What are the most important genetic factors influencing the health of an individual

A．The per capita expenditure for medical care has relatively little effect on the total amount of medical care available to a population.
B．The genetic makeup of a population is a more powerful determinant of the health of a population than the per capita expenditure for medical care.
C．A population may have very high per capita expenditure for medical care and yet have a lower health status than other populations with lower per capita expenditure.
D．The higher the per capita expenditure on medical care, the more advanced is the medical technology of a country; and the more advanced the technology, the better is the health of the population.