Which is an economic system run by the government
a. planned economy
b. a mixed economy
c. a free market economy
d. a black market economy

A. Planned economy

Explanation;

The planned economy is an economy in which production, investment, prices, and incomes are determined centrally by the government.such that decisions are made by a single authority rather than many market participants. It may use centralized, decentralized or participatory forms of economic planning.

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.