The Consumer Product Safety Commission (CPSC), Environmental Protection Agency (EPA) and Federal Communications Commission (FCC) are all examples of -

a
Government agencies that own all of the private businesses in the U. S.
b
Government agencies that take businesses ownership away from the people.
c
Government agencies that control all of the services in the U. S.
d
Government agencies that protect against the dangers of a pure market system.

Government agencies that protect against the dangers of a pure market system ( D )

Explanation:

The various agencies help protect against the dangers of a pure market system ( a market system that relies on markets for the allocation of resources without the regulation/intervention of the government )

The consumer product safety commission is in charge of enforcing federal  safety standards on consumer products,

The environmental protection agency is charged with the enforcing and establishing pollution standards and guidelines

The federal communications commission regulates interstate and foreign communications via different communication medium which includes : telegraph , radio and television

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail

answer; protectionism fosters competition and keeps price regulated;