A monopolist sells in two markets. The demand curve for her product is given by p1 = 1222x1 in the first market and p2 = 3065x2 in the second market, where xi is the quantity sold in market i and pi is the price charged in market i . She has a constant marginal cost of production, c = 6, and no fixed costs. She can charge different prices in the two markets. What is the profit-maximizing combination of quantities for this monopolist?

a) x1 = 58 and x2 = 32.

b) x1 = 29 and x2 = 30.

c) x1 = 59 and x2 = 29.

d) x1 = 39 and x2 = 28.

e) x1 = 49 and x2 = 40.