Answer:
D. unanswered Sales revenue at split-off point.
Step-by-step explanation:
Product contribution margin is the economic term used to describe a situation where a product sold generates revenue large enough to pay for all its production and distribution costs and expenses and still generate a profit for the company. In other words, this term refers to the money that is left over from the revenue generated from the sale of the product, after all of your production expenses have been paid. Sales revenue not being answered at the point of separation.