Answer:
C) Postal workers belong to the Executive branch of government.
Step-by-step explanation:
U.S government has three government branches namely Legislative, executive, Judicial. The legislative branch contains Congress and legislative branch agencies; Executive branch carries out the law enforcement; It includes President, Vice-president, Federal departments, Independent Agencies, Boards commissions, committees, quasi-official agencies.
Executive departments includes department of Agriculture, department of commerce, department of defence, department of energy, department of education. Postal service comes under the independent category of the executive branch. The judicial branch contains Federal courts and judicial agencies, Supreme court.