Jean is a producer in a monopoly industry. Her demand curve, total revenue curve, marginal revenue curve and total cost curve are given as follows: Q = 160 - 4P TR = 40Q - 0.25Q2 MR = 40 - 0.5Q TC = 4Q MC = 4 How much profit will she make at the profit-maximizing output level? Group of answer choices -996 0 1,296 1,568 none of the choices is correct