What Is Vesting of Pension Benefits

What is vesting of pension benefits?

A) It is the exclusion of new employees from benefits coverage until some term of employment is completed.
B) It is the reduction of benefits by any amount paid under a spouse's plan.
C) It is the negotiation some employers have with employees about wage concessions to reduce employer contributions to selected benefits.
D) It is a general strategy used to control medical benefit costs by promoting preventive health programs.
E) It occurs when employees become entitled to the employer-paid portion of pension benefits upon termination of employment.