Which of the following is a date rape drug

flunitrazepam , MDMA, gamma hydroxy Butyrate are called as date rape drugs Date rape drugs are any type of drug used to make <a style="box-sizing: border-box; background-color: transparent; color: ; text-decoration-line: none;" href=" style="box-sizing: border-box; background-color: transparent; color: ; text-decoration-line: none;" href=" assault</a> easier. Ref.Kaplon and Sadock, synopsis of psychiatry, 11 th edition, 648