I am unsure of these three questions. Can you please cite the answers?

I am unsure of these three questions. Can you please cite the answers?

QUESTION 3

1. According to Heilbroner, the solutions to the two basic economic problems/tasks are:
2. a.tradition, markets, and interest rates.
3. b.production and distribution.
4. c.manorial estates, guilds, and the Catholic Church.
5. d.command, markets, and tradition.

QUESTION 7

1. According to Heilbroner, there are two key tasks/problems that all societies face. These are:
2. a.Maintaining low interest rates and low inflation.
3. b.Maintaining demand and supply. 
4. c.Production and distribution.
5. d.The law of demand and the law of supply.

1 points