Cando Manufacturing Makes Lamps That Retail at $200 Each

Cando Manufacturing makes lamps that retail at $200 each. The unit variable cost is $120, and the fixed costs are $720,000 per year. Cando can produce a maximum of 2,000 lamps per month. What is the monthly net income at a volume of 1800 lamps per month?

A) $76,000
B) $84,000
C) $80,000
D) $88,000
E) $72,000