The correct option is D All of the above
Price mechanism
refers to the mechanism where price directs the flow of goods and services in
the market as it directs the supply by the production sector i.e supply will
increase if price increases and vice-versa and the demand sector i.e demand
will increase if price decreases and vice-versa. Therefore, price mechanism will operate only when the producer sector will efficiently anticipate the demand by the needs of the people and supply the commodities where cost in the generation of the commodities must be reflected in terms of opportunity cost.