A Pension Plan

A pension plan:

A) Is a contractual agreement between an employer and its employees in which the employer provides benefits to employees after they retire.
B) Can be underfunded if the accumulated benefit obligation is more than the plan assets.
C) Can include a plan administrator who receives payments from the employer, invests them in pension assets, and makes benefit payments to pension recipients.
D) Can be a defined benefit plan in which future benefits are set, but the employer's contributions vary depending on assumptions about future pension assets and liabilities.
E) All of the choices are correct.