Many employees of a local restaurant suddenly quit and seek other opportunities. What is the most likely explanation for the large number of employees quitting?

a. a developing price war
b. a protest action by the union
c. decrease in positive incentives to work
d. decrease of negative incentives to being unemployed

c. decrease in positive incentives to work

Employees are likely quitting because they are not receiving adequate rewards, benefits, or recognition for their work, leading them to seek other opportunities that may offer better incentives.