ERISA establishes the fiduciary principles for U.S. corporate pension plans.

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ERISA establishes the fiduciary principles for U.S. corporate pension plans. ERISA is very specific in its definition of fiduciaries and their responsibilities and investment managers of U.S. corporate pension plans are subject to ERISA's fiduciary provisions.

The correct answer to the question is C. ERISA.

ERISA stands for the Employee Retirement Income Security Act, which was passed by the U.S. Congress in 1974. ERISA establishes the fiduciary principles and guidelines for managing and administering employee benefit plans, including corporate pension plans in the United States. It was enacted to protect the interests of employees who rely on these pension plans for their retirement income.

Under ERISA, fiduciaries are individuals or entities responsible for managing and making decisions regarding the pension plan assets. Fiduciaries have a legal duty to act solely in the best interests of the plan participants and beneficiaries. They must act prudently, diversify plan investments, follow the plan's stated provisions, and avoid conflicts of interest.

ERISA sets standards for the reporting and disclosure of information to plan participants and beneficiaries, ensuring that they receive clear and comprehensive information about the plan's features, funding status, and investment options. It also establishes rules for vesting, which determines when employees have earned a non-forfeitable right to their employer's contributions to the plan.

In addition to fiduciary responsibilities, ERISA addresses other aspects of pension plans, such as participation, funding requirements, plan termination insurance, and enforcement mechanisms. It created the Pension Benefit Guaranty Corporation (PBGC), a federal agency that insures certain defined benefit pension plans and provides a safety net in case of plan termination with insufficient assets.

To summarize, ERISA is the legislation that establishes the fiduciary principles for U.S. corporate pension plans. It sets guidelines for the management and administration of these plans, ensuring that fiduciaries act in the best interests of plan participants and beneficiaries, and provides protections and safeguards for employees' retirement benefits.