Forever Quilting Is a Small Company That Makes Quilting Kits

Forever Quilting is a small company that makes quilting kits priced at $120 each.(There is no quantity discount.) The costs of the materials that go into each kit are $45.It costs $5 in labor to assemble a kit.The company has monthly expenses of $1,000 for rent and insurance, $200 for heat and electricity, $500 for advertising, and $4,500 for the monthly salary of its owner.Last month the company sold 150 kits.Forever Quilting's total revenue for the month was

A) $3,500.
B) $6,750.
C) $7,500.
D) $10,500.
E) $18,000.