; (ii) invest any amount transferred under section 401(a)(31)(B)(iv) of the Internal Revenue Code of 1986 in United States Treasury securities; (iii) upon application filed by the participant or beneficiary in such form and manner as may be prescribed in regulations, pay to the participant or beneficiary the amount transferred (or the appropriate survivor benefit) either— (I) in a single sum (plus interest); or (II) in such other form as is specified in regulations