Match List-I with List-II with respect to methods of contraception and their respective actions.
| List-I | List-II |
|---|---|
| (a) Diaphragms | (i) Inhibit ovulation and implantation |
| (b) Contraceptive pills | (ii) Increase phagocytosis of sperm within the uterus |
| (c) Intra-uterine devices | (iii) Absence of menstrual cycle and ovulation following parturition |
| (d) Lactational amenorrhea | (iv) They cover the cervix, blocking the entry of sperms |
Choose the correct answer from the options given below: