Solve the Problem $C$ , in Dollars, of Operating the Store Is Approximately Given

Multiple Choice

Solve the problem.
-The owner of a video store has determined that the cost $C$ , in dollars, of operating the store is approximately given by $C ( x ) = 2 x ^ { 2 } - 26 x + 640$ , where $x$ is the number of videos rented daily. Find the lowest cost to the nearest dollar.

A) $\$ 556$
B) $\$ 302$
C) $\$ 471$
D) $\$ 725$