Which characteristic is primarily associated with a command economy?
a. competition among suppliers in the market
b. free access to the marketplace for producers
c. centralized decision making about what will be produced
d. competition in the marketplace to provide consumer choice

The answer is c. centralized decision making about what will be produced.  This is because decisions and actions are made by the government and not by the market. Government decides what to produce and what prices to give goods. Examples of this can be found in North Korea, China and the former Soviet Union.

answer; provide for the common defense:

answer; to be the responsible party for healthcare delivery through medicare and medicaid programs;