; (iii) a deferment due to cancer treatment described in section 427(a)(2)(C)(iv), 428(b)(1)(M)(v), 455(f)(3), or 464(c)(2)(A)(vi) of the Higher Education Act of 1965; or (iv) a forbearance described in subparagraph (A)(i)(II) or (B) of section 428(c)(3) or 464(e)(1) of the Higher Education Act of 1965. (3) Application Unless otherwise requested by the borrower in writing, a cancellation or repayment under paragraph (1) shall be applied — (A) in the case of a borrower whose loans, as of March 12, 2020, had different applicable rates of interest, first toward the outstanding balance due on the loan with the highest applicable rate of interest among such loans