Which of the Following Would Be True of an Increase

Multiple Choice

Which of the following would be true of an increase in automobile fuel taxes? (i) private incentives are used to reduce automobile pollution
(ii) private incentives are used to reduce highway congestion
(iii) government directly controls the amount of automobile fuel that is purchased

A) (i) and (ii) only
B) (ii) and (iii) only
C) (iii) only
D) (i) , (ii) and (iii)