stephanie meets sam at a rave. as they are talking, sam put a drug into stephanie's drink as she turns her head to talk to a friend. when she wakes up the next morning, she finds herself in bed with sam and learns that he had raped her the night before, although she has no memory of the assault. it is most likely that the drug sam put into stephanie's drink was a. mdma b. lsd c. rohypnol d. ecstasy

Sam put into Stephanie's drink was C. Rohypnol. Rohypnol is a drug belonging to benzodiazepines, its properties help in the treatment of insomnia and in surgical procedures to induce anesthesia. Its effects include muscle relaxation, sedation and, reduction of anxiety. This drug is used in sexual abuse because it produces partial amnesia and that makes it difficult for the victims to recognize their aggressor.
I hope my answer can help you.

C. equitable; undue influence