Calculate the net marketing contribution of a product if the market demand for the product is 4 million units annually, and the product captures 10 percent of this demand with a price of $50 per unit and a cost of $40 per unit

The total of marketing and sales expenses is $2.5 million.
A) $3 million
B) $2.5 million
C) $2 million
D) $1.5 million
E) $1 million

D