A) killing sperms
B) killing ova
C) preventing ovulation
D) forming barrier between sperms and ova
Correct Answer: C
Solution :
Oral contraceptive pills help in birth control. These contains the female sex hormones oestrogen and progesterone; prevents the development of eggs and ovulation by inhibiting secretion of FSH. These pills have side effects such as nausea, breast tenderness, weight gain and break-through bleeding and high blood pressure.
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