The figure below shows the cost and revenue curves for a non$-$discriminating monopolist. The profit$-$maximizing output and price for the monopolist are:

$$

Figure $9\mathrm{.}2$

Question $6$Select one:

a$.$

$90$ units and $$18,$ respectively.

b$.$

$1,500$ units and $$22,$ respectively.

c$.$

$1,100$ units and $$28,$ respectively.

d$.$

$1,700$ units and $$22,$ respectively.

e$.$

$1,500$ units and $$24,$ respectively.