Q.

Assertion: Ovary releases one egg every month.
Reason: The lining of uterus is always thick and spongy.

1 Both assertion and reason are correct and reason is the correct explanation of assertion.  
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.  
3 Assertion is true but Reason is false.  
4 Assertion is false but Reason is true.  

Ans.

(3)

The thick and spongy lining of the uterus, the endometrium, is developed during each menstrual cycle after ovulation. The endometrium serves as an anchorage for the developing foetus. Thus, assertion is true but reason is false.