Choose correct option for given statements : (i) Chances of failure, through natural method of contraception is high. (ii) Barrier methods are available for both males and females. (iii) Condom is also used to cover the vagina and cervix in the female. (iv) “Nirodh” is a popular brand of condom for the female and male. (v) Use of condoms has increased in recent years due to its additional benefit of protecting the user from contracting STDs and AIDS. (vi) Diaphragms, cervical caps and vaults are also barriers made of copper and use for cover the cervix during coitus. (vii) Diaphragms, cervical caps and vaults are blocking the entry of sperm through fallopian tube.