Refer to the Following -What Are the Profit-Maximizing Prices for the Two Goods?
A)

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 prices for the two goods?

A) $P _ { X }$ = $375, $P _ { y }$ = $284
B) $P _ { X }$ = $423, $P _ { y }$ = $712
C) $P _ { x }$ = $166, $P _ { y }$ = $324
D) $P _ { X }$ = $481, $P _ { y }$ = $588