Blue Machines' short-run cost curve is the following: C(q, K) = + 15K, where q is the number of machines produced and K is the number of robot hours Blue Machines hires. Currently, Blue Machines hires 10 robot hours per period. The short-run marginal cost curve is the following: MC(q, K) = 50. If Blue Machines receives $250 for every machine it produces, what is the profit maximizing output level? Group of answer choices 60 70 80 50