; or (bb) the original interest rate of the component loan. (ii) Federal Direct Unsubsidized Stafford loans (I) Undergraduate FDUSL The interest rate for any component loan that is a loan under section 428H or a Federal Direct Unsubsidized Stafford Loan made to an undergraduate student shall be a rate equal to the lesser of— (aa) the rate of interest for a refinanced Federal Direct Unsubsidized Stafford loan determined under paragraph (1)(B)(i) if such loan were made on the date on which the refinanced Federal Direct Consolidation Loan is made under this section; or (bb) the original interest rate of the component loan. (II) Graduate FDUSL The interest rate for any component loan that is a loan under section 428H or a Federal Direct Unsubsidized Stafford Loan made to a graduate or professional student shall be a rate equal to the lesser of— (aa) the rate of interest for a refinanced Federal Direct Unsubsidized Stafford loan determined under paragraph (1)(B)(ii) if such loan were made on the date on which the refinanced Federal Direct Consolidation Loan is made under this section; or (bb) the original interest rate of the component loan. (iii) Federal Direct PLUS loans The interest rate for any component loan that is a loan any loan under section 428B or Federal Direct PLUS Loan shall be a rate equal to the lesser of— (I) the rate of interest for a refinanced Federal Direct PLUS loan determined under paragraph (1)(C) if such loan were made on the date on which the refinanced Federal Direct Consolidation Loan is made under this section