Answer:
A & D is the correct answer. If it's wrong, i'm sry. lol :D
It is also known by the names capitalism and free market. A free enterprise economy is made up of consumer spending, business investments and government purchases. Each of these parts play an important role in the free enterprise economy. Consumers are an important part of a free enterprise economy.
" if he had been left to himself " is a subordinate clause because it does not form a complete sentence..it cannot stand by itself