section 484, to be eligible to receive a loan (other than an IDEA Consolidation Loan) under this part, a borrower— (A) shall be an individual who, on the date of application for such loan, has no outstanding balance of principal or interest owing on any loan made, insured, or guaranteed under part B or D (other than an excepted PLUS loan or an excepted consolidation loan (as such terms are defined in section 493C(a)))