Read the following Assertion and Reason and choose the correct option. Assertion: Chances of conception are nil during breast feeding by mother Reason: This type of contraceptive measure has been reported to be effective only upto a maximum period of six months following parturition.

Step-by-step solution

Lactational amenorrhea (absence of menstruation) method is based on the fact that ovulation and therefore the cycle do not occur during the period of intense lactation following parturition. Therefore, as long as the mother breast-feeds the child fully, chances of conception are almost nil.