and return information (as defined in section 6103 of the Internal Revenue Code of 1986) may be obtained under this subparagraph only to the extent authorized by section 6103(l)(13) of such Code. (B) Borrower notification Not later than 30 days after a borrower makes the 6th payment required for the loan rehabilitation described in subparagraph (A), the Secretary shall notify the borrower of the process under subparagraph (C) with respect to such loan. (C) Secretary's selection of plan With respect to each borrower who has made the 9th payment required for the loan rehabilitation described in subparagraph (A), the Secretary shall, as soon as practicable after such payment— (i) in a case in which any of the borrower's covered loans, without regard to whether the loan has been so rehabilitated, is eligible for an income-driven repayment plan— (I) (aa) provide the borrower with the income-driven repayment plan that requires the lowest monthly payment amount for each covered loan of the borrower, compared to any other such plan for which the borrower is eligible