Solve the Problem
-The Manufacturer of a CD Player Has $R$

Multiple Choice

Solve the problem
-The manufacturer of a CD player has found that the revenue $R$ (in dollars) is $R ( p ) = - 4 p ^ { 2 } + 1560 p$ , when the unit price is $p$ dollars. If the manufacturer sets the price $p$ to maximize revenue, what is the maximum revenue to the nearest whole dollar?

A) $\$ 152,100$
B) $\$ 608,400$
C) $\$ 1,216,800$
D) $\$ 304,200$