Nonoxynol 9 ?: (A) Is a chemical detergent, (B) Is a barrier contraceptive, (C) Can be used repeatedly in a day, (D) Can be used to prevent STIs
Answer is A. Ans. is'a'i.e., Is a chemical detergentNonoxynol - 9Chemical detergent that damages the sperm cell membranes, killing the cells.It is a safe, effective contraceptive option for women at low risk of HIV/ STIs