Fill up the blanks in the following paragraph by selecting the correct option. A. (i)…

Fill up the blanks in the following paragraph by selecting the correct option.
A. (i) methods work on the principle of avoiding chances of ovum and sperms meeting.
B. (ii) is one such method in which the couples avoid or abstain from coitus from day 10 to 17 of the menstrual cycle.
C. (iii) is another method in which the male partner withdraws his penis from the vagina just before ejaculation so as to avoid insemination.
D. (iv) method is based on the fact that ovulation and therefore the cycle do not occur during the period of intense lactation following parturition.