The correct option is C both males and females
Barrier methods of contraception act as a barrier and prevent the meeting of sperm and ovum.
In males, condoms are widely used as a contraceptive because of their added benefit of protection from STDs and ease of use.
Diaphragms, cervical caps, and vaults are also barriers made of rubber that are inserted into the female reproductive tract to cover the cervix during coitus. They prevent conception by blocking the entry of sperms through the cervix.