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The Sunbelt Corporation offers a defined benefit qualified retirement plan to its eligible employees. As a defined benefit plan, Sunbelt's retirement plan has certain characteristics. With regard to these characteristics, it most likely is correct to say that

plan benefits are portable for any employees who leave Sunbelt before retirement

Sunbelt assumes the investment risk for the plan

Sunbelt, as well as plan participants, can contribute to the plan

plan participants' retirement benefits are unknown until retirement