Ovulation in a women with 28 days cycle occurs at-
14 days prior to menstruation
Just before LH surge
Just after corpus luteal maturation
Due to Progesterone rise
Ans (a) 14 days prior to menstruation(Ref: Ganong, 25th ed/p.401)Ovulation is the process of release of ovum that happens around 14th day of the cycle
Endocrinology and Reproduction