The correct answer is d. push money.
Here's why:
Trade sales promotions are incentives offered by manufacturers to wholesalers and retailers, not to individual salespeople like Sylvia.
Sales promotions are a broader term that can refer to any kind of promotion to boost sales, not just those aimed at intermediaries like Sylvia. Consumer sales promotions are specifically targeted at end consumers, not salespeople. Push money is a term used specifically for incentives offered to salespeople to promote and sell a particular product. This is exactly what the manufacturer is doing in this case, so it's the best answer. The manufacturer of the gift boxes that sylvia sells has offered her an incentive. what is this called push money.
The correct answer is d. push money.