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, it determines the overall production in the economy that also signifies technological development and investment done. Moreover, it determines the consumption expenditure in the economy through aggregate demand which also signifies the overall savings in the economy.