Which is the best definition of communism?
a. Communism is an economic system in which the distribution of property and resources is primarily controlled by the government.
b. Communism is an economic system in which the distribution of property and resources is primarily controlled by private businesses.
c. Communism is a political system in which power lies in the hands of a single figure who acts as a monarch.
d. Communism is a political system in which power lies in the hands of several political parties.