Use the Following Information to Answer Questions $S M C = 12 - 0.005 Q + 0.0000008 Q ^ { 2 }$

Use the following information to answer Questions.
Sport Tee Corporation manufactures T-shirts bearing the logos of professional baseball and football teams. The wholesale market for sport T-shirts is perfectly competitive.The manager forecasts the wholesale price of T-shirts next year to be $7.00. The firm's estimated marginal cost is $S M C = 12 - 0.005 Q + 0.0000008 Q ^ { 2 }$ where Q is the number of T-shirts produced and sold each month. Sport Tee Corporation will have a fixed cost of $2,000 per month.
-Monthly profit will be

A) -$2,000
B) -$1,150
C) $4,250
D) $3,400
E) $2,250