Which of the following statements is NOT correct?

Common joint costs that occur prior to the split-off point are irrelevant in the decision of whether to sell a product at the split-off point or to process the product further.

Sunk costs are irrelevant in decision making.

When a company that makes multiple products is faced with a resource constraint in production, the company should place the greatest emphasis on the product that provides the highest contribution margin per unit of product.

A future benefit that does not differ among alternative courses of action is irrelevant to decision making.