Match the following images with their respective descriptions.
(i) Induces foreign body reaction in uterus and suppress sperm motility (with obstetrician help).
(ii) Keeps sperm from entering the uterus by covering the cervix and also has spermicide (with obstetrician help).
(iii) It has flexible rings at each end and is inserted deep into the vagina (obstetrician help not needed).
(iv) Fits over erect penis and works by keeping semen from entering the vagina (obstetrician help not needed).
iv⇒a,iii⇒b,ii⇒d,i⇒c
Mechanical contraceptives are devices which are used to prevent fertilization by physical means. The different kinds include: