of a complaint filed under paragraph (1) the Secretary shall initiate an investigation and determine whether there is reasonable cause to believe that the complaint has merit and notify, in writing, the complainant and the employer or employers alleged to have committed a violation of subsection (a)(1) of the Secretary’s findings. The Secretary shall, during such investigation afford the complainant and the employer or employers named in the complaint an opportunity to submit to the Secretary a written response to the complaint and an opportunity to meet with a representative of the Secretary to present statements from witnesses. The complainant shall be provided with an opportunity to review the information and evidence provided by employer or employers to the Secretary, and to review any response or rebuttal by such the complaint, as part of such investigation. (B) Reasonable cause found