1.The correct answer is B. Consumers and producers
In a free market, producers choose what to produce depending on the demands of consumer. Consumers have the choice on what to consume. This is in contrast to a planned economy where the government makes the production decision.
2. The correct answer is C. From railroad to horse drawn carriage to automobile
The encomienda system allowed a colonist to enslave Native Americans, so the end of this system brought about a new search for slaves, eventually leading to the enslavement of Africans.