All of the Following Statements About Various Types of Pension

All of the following statements about various types of pension plans are true EXCEPT

A) Under a trust-fund plan,an individual annuity is purchased for each participant,and additional annuity credits are purchased annually.
B) A separate investment account is a group pension account with a life insurance company.
C) Under an investment guarantee contract,the insurer receives funds over a number of years and if actual interest rates are higher than the guaranteed projected rate for the later years,the higher rate is paid.
D) Under a guaranteed investment contract,the insurer guarantees the principal of a lump sum deposit as well as an interest rate for a number of years on the deposit.