Final answer:
The City Department of Human Resources issues an Employee ID to manage payroll and benefits for city employees. This includes tracking important employment components like health insurance, retirement plans, and other benefits.
Step-by-step explanation:
The number issued to each member by the City Department of Human Resources to manage city's employee payroll/benefits is A) Employee ID. The Employee ID is a unique identifier assigned to employees to manage integral components of employment such as employee insurance (mainly health), retirement plans, employer payments to Social Security, unemployment and worker's compensation insurance, other benefits including Medicare, and total compensation per hour.