Which one of the following statements best describes the primary responsibility of a qualified plan trustee?

Select one:

a$.$to provide periodic reports to plan participants in accordance with plan provisions

b$.$to determine that the plan is in compliance with minimum coverage and participation tests as specified in ERISA provisions

c$.$to advise the plan administrator regarding suitable investments for the qualified plan trust

d$.$to manage the fund solely in the interest of plan participants and beneficiaries