National Defense Is Commonly Provided by the Government, but Food

National defense is commonly provided by the government, but food is not, because:

A) food is too essential for survival to be provided by a bureaucratic organization.
B) food suppliers have successfully lobbied the government to stay out of the food industry.
C) food can be easily withheld from those who refuse to pay for it.
D) the distribution of food is subject to the free-rider problem.
E) food is available at low prices and government undertakes the supply of only expensive goods.