Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R :

Assertion A : Acetal / Ketal is stable in basic medium.

Reason R : The high leaving tendency of alkoxide ion gives the stability to acetal/ketal in basic medium.

In the light of the above statements, choose the correct answer from the options given below :

1. A A is false but R is true.
2. B Both A and R are true but R is NOT the correct explanation of A
3. C Both A and R are true and R is the correct explanation of A
4. D A is true but R is false. Correct answer