Monopoly quantity and innovation question (Multivariate optimisation analysis)

Consider a profit maximising monopoly with inverse demand p(x) = 1 x, constant per unit marginal cost of production is c = E e, where e is innovation effort of the firm and the total cost of innovation level e is (1382. If e, x > 0 which of the following statements is correct? . * _ 16 (I) e _4+1 .. 66* (II) 65 1 (iv) All the above are correct (v) None of the above are correct