Answer:
The correct answer is Sales commission.
Step-by-step explanation:
Sales commission is a form of sales promotion in which sales personnel are incentivized to expend greater effort selling a specific product or brand.
Sales commission is the percentage of the amount of the sale that a sales man earns in adddition to his salary. The purpose of paying commision is to motivate sales staff to make more sales. In this way the benifits of the company is positively correlated with the benifit of person working for the company.