At what age does a human female reach menopause?

The correct answer is Option (3) → 50 years

The menstrual cycle begins at puberty; the first menstruation is called menarche. The cycle repeats about every 28/29 days and stops during pregnancy. In human females the cycles cease around 50 years of age, and this stopping is called menopause. Regular menstruation shows the normal reproductive phase, which lasts from menarche to menopause.

NCERT Extract:
Menstrual Cycle – “… In the absence of fertilisation, the corpus luteum degenerates. This causes disintegration of the endometrium leading to menstruation, marking a new cycle. In human beings, menstrual cycles ceases around 50 years of age; that is termed as menopause. Cyclic menstruation is an indicator of normal reproductive phase and extends between menarche and menopause.”