Forever Quilting Is a Company That Designs and Distributes Quilting

Multiple Choice

Forever Quilting is a company that designs and distributes quilting kits.The kits are priced at $120 each.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 in quilting magazines,and $3,500 for the monthly salary of its owner.Forever Quilting's marginal revenue is

A) $50.
B) $70.
C) $120.
D) $3,500.
E) $5,200.