Phillip is the manager of a home appliance store. He supervises his subordinates while they are installing appliances in customers' homes. If they do not complete the installation process within the time allotted, they are given a black mark. Depending on the number of black marks they have on their record, Phillip deducts their salaries. In this scenario, Phillip is using _____.
a) adaptive control
b) normative control
c) concertive control
d) bureaucratic control