The owner of a video game store creates the expression −2x2 + 32x − 8 to represent the store's weekly profit in dollars, where x represents the price of a new video game. choose the equivalent expression that reveals the video game price that produces the highest weekly profit, and use it to determine that price.

a)−2(x2 − 16x) − 8; x = $16
b)−2(x2 − 16x + 4); x = $4
c)−2(x − 8)2 + 120; x = $8
d)−2(x − 8)2 + 120; x = $120