Refinanced loans guaranteed at 95 percent .—

The Secretary shall guarantee 95 percent of—

(A) in the case of a loan that solely refinances a direct loan made under this chapter, the principal and interest due on the loan on the date of the refinancing; or

(B) in the case of a loan that is used for multiple purposes, the portion of the loan that refinances the principal and interest due on a direct loan made under this chapter that is outstanding on the date the loan is guaranteed.