The Arthur Company manufactures kitchen utensils. The company is currently producing well below its full capacity. The Benton Company has approached Arthur with an offer to buy 20,000 utensils at $0.75 each. Arthur sells its utensils wholesale for $0.85 each; the average cost per unit is $0.83, of which $0.12 is fixed costs. If Arthur were to accept Benton's offer, what would be the increase in Arthur's operating profits? A) $400. B) $800. C) $1,600. D) $2,000.