Which of the Following Are Advantages of Green Taxes Over

Which of the following are advantages of green taxes over command- and- control systems?
(i) They are more appropriate when it is impossible to predict the precise environmental impact of pollution.
(ii) They have the effect of making the polluter pay for the amount of pollution generated.
(iii) They are easier to administer than command- and- control systems.
(iv) They act as a continuous incentive for polluters to reduce the amount of pollution they generate.

A) (ii) and (iii)
B) (i) and (ii)
C) (iii) and (iv)
D) (ii) and (iv)
E) (i) and (iv)