PLEASE HELP ILL GIVE BRAINLIST(sorry if I didn't spell that right) Which of the following best describes the United States?
Select one:
a. It has a market economy with no government regulation. This is the only system that can work with a government run by the people.
b. It has a command economy. A large nation like the United States needs the government to control all growth of business to prevent problems.
c. It has a traditional economy. Most communities are focused on providing their own needs with the resources available in the local area.
d. It has a mixed economy. The government protects individual rights, such as minimum pay for work and choices in goods and services.

The constant presence of diseases or infectious agents within a given geographic area or population group. it may also refer to the usual prevalence of a given disease with such area or group. it includes holoendemic and hyperendemic diseases. a holoendemic disease is one for which a high prevalent level of infection begins early in life and affects most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than do children (malaria in many communities is a holoendemic disease). a hyperendemic disease is one that is constantly present at a high incidence and/or prevalence rate and affects all groups equally. so probably family history.