The correct answer is
A. Citizens can change jobs relatively easily.
Explanation:
Market Economy is a system where all the decisions- making about investments, productions and distribution are supervised by the prices generated by the laws of demand and supply. If the supply of a resource is low, but the demand is high, the price will tend to be high. If the demand is low and the supply high, the price will tend to be low. So in order to regularize the life of private citizens they tend to get jobs according to their own interests.
