Answer:
Sales contest.
Explanation:
In this scenario, every monday during the month of December, salespeople who had the highest sales the previous week participated in a package surprise, where each would receive a package containing either a $50 or a $100 bill. This short-term incentive is known as a sales contest.
A sales contest can be defined as a short-term incentive program developed or created by a business entity to motivate its sales personnels in order to achieve specific sales objectives and targets.
Basically, it is mainly competitive so as to motivate and stimulate salespeople to meet set objectives, goals and targets by duly rewarding with prizes.