The Difference Between an Insured Versus a Noninsured Pension Plan

The difference between an insured versus a noninsured pension plan is

A) the insured plan is insured under the Pension Benefit Guaranty Corporation, while the noninsured is not.
B) the insured plan is a government pension fund; the noninsured is in the private sector.
C) the insured plan obligations are issued by a life insurance company with promises to pay specific amounts in the future, while the noninsured are managed by a trustee with no guarantee of amounts distributed in the future.
D) the employer of the insured guarantees payments, but not so in the case of the uninsured.