Which of the following is not a legitimate area of intervention by government in a mixed economy?

A.Regulation of the pricing behaviour of monopoly industries.

B.Regulation of price increases that result from changes in patterns of demand and supply in competitive markets.

C.Stabilisation of the economy during periods of cyclical instability.

D.Redistribution of purchasing power via progressive taxation and transfers.

E.The provision of funds for public goods such as parks and street lights.