Answer: b. private enterprise and governmental participation coexist.
Step-by-step explanation:
The American economic system is a mixed economic system which means that there are elements of both private enterprise and government participation.
There was a time when the U.S government played a limited role in the economy but as time went by and multiple failures were recorded in this system, the government stepped in to control the economy somewhat which led to both the private and public sectors having to coexist.