Use the Figure to Answer the Following Question(s)

Use the figure to answer the following question(s) .
Figure 9-3

For Figure 9-3, if the market price is $30, indicate the firm's profit-maximizing output and maximum profit.

A) profit-maximizing output, 125; maximum profit, zero
B) profit-maximizing output, 125; maximum profit, between $1,000 and $1,250
C) profit-maximizing output, 150; maximum profit, $1,500
D) profit-maximizing output, 150; maximum profit, between $1,250 and $1,500