I have questions regarding the following problems.

Please give me explanations. These are from my economics class.

Explain whether each of the following governmental activities is motivated by a concern about equality or a concern about efficiency. In the case of efficiency, discuss the type of market failure involved.

a. regulating cable TV prices

b. providing some poor people with vouchers that can be used to buy food

c. prohibiting smoking in public places

d. breaking up Standard Oil (Which once owned 90 percent of all oil refineries) into several smaller companies

e. imposing higher personal income tax rates on people with higher incomes

f. instituting laws against driving while intoxicated