I am looking for the correct answer to this general accounting problem using valid accounting standards.

Two products, XT and PL, result from a joint production process. Product XT has been allocated $20,000 of the total $45,000 joint costs. A total of 3,000 units of XT are produced. XT can be sold at the split-off point for $9 per unit, or it can be processed further at an additional total cost of $7,500 and then sold for $11 per unit. IF product XT is processed further and sold, what is the effect on total profit compared to selling it immediately at the split-off point? a) $1,500 more profit b) $1,500 less profit c) $6,000 more profit d) $7,500 less profit