The Carter Company makes products A and B in a joint process from a single input, R. During a typical production run, 50,000 units of R yield 20,000 units of A and 30,000 units of B at the split-off point. Joint production costs total €90,000 per production run. The unit selling price for A is €4 and for B is €3.80 at the split-off point. However, B can be processed further at a total cost of €60,000 and then sold for €7.00 per unit. In a decision between selling B at the split-off point and processing B further, which of the following items is not relevant?
A、The €60,000 cost to process B beyond the split-off point
B、The portion of the €90,000 joint production cost allocated to B
C、The €3.80 unit sales price of B at the split-off point
D、The €7 unit selling price for B after further processing