The Total Revenue R Earned (In Thousands of Dollars) from Manufacturing

Multiple Choice

The total revenue R earned (in thousands of dollars) from manufacturing handheld video games is given by $R ( p ) = - 25 p ^ { 2 } + 1200 p$
Where p is the price per unit (in dollars) .

Find the revenue when the price per unit is $20.

A) $14,000,300
B) $14,000,200
C) $14,000,400
D) $14,000,000
E) $14,000,100