Allowing an Inventor to Have the Exclusive Rights to Market

Allowing an inventor to have the exclusive rights to market her new invention will lead to which of the following? (i) a product that is priced higher than it would be without the exclusive rights
(ii) desirable behaviour in the sense that inventors are encouraged to invent
(iii) higher profits for the inventor

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