Answer:
C. Spot Bonus
Explanation:
Spot Bonus is a type of reward that is given by the higher ups of a company if they notice a visible good deeds from the employees. In most cases, spot bonus is given in order to encourage more productivity among the employees.
When they are aware of the possibilities that they can be rewarded if they are spotted doing good deeds, those people will be more likely to do it with the hope that the higher ups somehow see them doing so.