An Entrepreneur Starts New Companies and Sells Them When Their

Multiple Choice

An entrepreneur starts new companies and sells them when their growth is maximized. Suppose that the annual profit for a new company is given by , where is in thousands of dollars and x is the number of years after the company is formed. If she wants to sell the company before profits begin to decline, after how many years should she sell it?

A) Sell the company after 6 years.
B) Sell the company after 7 years.
C) Sell the company after 8 years.
D) Sell the company after 9 years.
E) Sell the company after 10 years.