Golden Care provides lawn services in residential areas. They advertise by paying workers to put flyers on front doorknobs where residents are most likely to see them. Initially, these workers were paid based on how many flyers they distribute. After a few days of noticing flyers attached to mailboxes, side mirrors of cars, and dropped in gutters, Golden Care decides to change the incentives to improve the quality of the work performed. Which form of compensation is the best way to improve worker incentives