According to the Textbook,once an Employee Is Vested,all Pension Plan

Multiple Choice

According to the textbook,once an employee is vested,all pension plan contributions are "locked-in" and cannot be withdrawn by the employee on termination of employment; in this case,when must employees wait until to receive a pension from the plan?

A) Changing jobs
B) Retirement
C) At least 5 years of service
D) Transfer
E) Promotion