Which of the following is an inherent limitation of a defined contribution plan when viewed from the perspective of providing retirement income?

A. An employee who joins at an older age will only have a short period of time to accumulate funds.

B. Because of the effect of compound interest, greater weight is given to the employee's lower compensation at younger ages.

C. The employee's benefit under this approach can only be estimated.

D.All of these are inherent limitations of a defined contribution plan