In a Fully-Funded Private Retirement Plan

In a fully-funded private retirement plan:

A) benefits are paid only if assets are sufficient to cover all obligations.
B) assets tend to only be large enough to cover benefits and expenditures for a year or two.
C) assets tend to be large enough to cover benefits and expenditures for many years.
D) benefits are small relative to the size of the fund from which benefits are paid.