Refer to the Following What Are the Profit-Maximizing Levels of Output for the Two

Multiple Choice

Refer to the following: $$\begin{array} { l } P _ { X } = 666 - 0.5 Q _ { X } - 2 Q _ { Y } \\P _ { Y } = 484.5 - 1.5 Q _ { Y } - 0.25 Q _ { X } \\M C _ { X } = 20 + 2 Q _ { X } \\M C _ { Y } = 4 + Q _ { Y }\end{array}$$ What are the profit-maximizing levels of output for the two goods?

A) $Q _ { x }$ = 30, $Q _ { Y }$ = 34
B) $Q _ { x }$ = 63, $Q _ { Y }$ = 66
C) $$Q _ { x }$$ = 142, $Q _ { Y }$ = 110
D) $Q _ { x }$ = 191, $Q _ { Y }$ = 163