(a) List any four characteristics of an ideal contraceptive.
(b) Name two intrauterine contraceptive devices that affect the motility of sperms.

Explanation

(a) An ideal contraceptive has the following characteristics :
1. It is user - friendly.
2. It should not interfere with the sexual drive desire or the sexual act of the user.
3. It should be easily available.
4. It should be effective and reversible with no or little side effects.
( b) The two IUDS that affect the motility of the sperms are:
1.`C_(u) T`
2. `C_(u) 7`