Garden of Eden Company manufactures two products, Brights and Dulls, from a joint process. A production run costs $50,000 and results in 250 units of Brights and 1,000 units of Dulls. Both products must be processed past the split-off point, incurring separable costs for Brights of $60 per unit and $40 per unit for Dulls. The market price is $250 for Brights and $200 for Dulls. What is the amount of joint costs allocated to Dulls using the constant gross margin percentage method? a.$10,000 b.$40,000 c.$15,000 d.$50,000