of assets or funds described in subparagraph (C), (D), (E), or (F). (B) Target date/lifecycle option The class of assets or funds described in this subparagraph is the class of assets or funds that constitutes a qualified default investment alternative under Department of Labor regulation section 2550.404c–5(e)(4)(i). (C) Principal preservation The class of assets or funds described in this subparagraph is the class of assets or funds that is designed to protect the principal of the individual on an ongoing basis, including passbook savings, certificates of deposit, insurance contracts, mutual funds, United States savings bonds (which may be indexed for inflation), including through a myRA established for the benefit of the employee, and similar assets specified in regulations. (D) Balanced option The class of assets or funds described in this subparagraph is the class of assets or funds that constitutes a qualified default investment alternative under Department of Labor regulation section 2550.404c–5(e)(4)(ii). (E) Guaranteed lifetime income option or equivalent The class of assets or funds described in this subparagraph is the class of assets or funds that is designed to provide an employee with the right to elect to receive distributions as a defined level of income annually (or more frequently) for at least the remainder of the life of the employee or the joint lives of the employee and the employee’s designated beneficiary. No later than 12 months after the date of enactment of this Act, the Secretary of Labor and the Secretary shall issue guidance defining a guaranteed lifetime income or equivalent. (F) Other Any other class of assets or funds determined by the Secretary to be a qualified investment for purposes of this section. (6) Coordination with withholding The Secretary shall modify the withholding exemption certificate under section 3402(f) so that, in the case of any qualifying employee covered under an automatic IRA arrangement, any notice and election requirements with respect to the arrangement