Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions :
An automobile manufacturer can produce up to 300 cars per day. The profit made from the sale of these vehicles can be modeled by the function , where P(x) is the profit in dollars and x is the number of automobiles made and sold.
-How many cars should be made and sold to maximize profit?

A) 25
B) 75
C) 150
D) 1500