Correct Answer: (a) in the case of the imperative planning the market mechanism is entirely replaced by a command hierarchy, while in the case of indicative planning, it is looked upon as a way to improve the functioning of market system.
Solution:In imperative planning, economic decisions are made through the centralized planning authority usually the government and the market forces of demand and supply have a very limited role to play in such centralized system. In indicative planning, the role of the state is to indicate and provide directions and support to the market for their functioning. Indicative planning serves to complement and enhance the market, as oppose to replace the market mechanism (in imperative planning), hence it is adopted in market-based and mixed economies.