A Company Sells Two Products with Information as Follows

A company sells two products with information as follows: Products are made by machine. 4 units of Product A can be made with one machine hour and 2 units of Product B can be made with one machine hour. The company has a maximum of 2,000 machine hours available per month. The company can sell up to 5,000 units of Product A per month, and up to 2,000 units of Product B for the month. What is the maximum amount of contribution margin that the company could earn in a month given the stated constraints?

A) $16,000
B) $18,000
C) $20,000
D) $22,000