Which power used in this situation, when the manager gives incentive to one employee for extra effort on a new project?

QoDw2bGdxMjTz0MHo8z9PB
Practise the full RRB Nsg. Superintendent-20 July 2019 (Shift-3rd)
Attempt every question from this paper in a timed mock, then review the full solution for each one.