During Oogenesis in human, first maturation division starts——-A—— and completes——-B——-:
1) A-After birth, B- Before menopause
2) A-Before birth, B-just prior to ovulation
3) A- Before ovulation, B- After fertilisation
4) A- Before ovulation, B-After entry of sperm
4) A- Before ovulation, B-After entry of sperm