Select the correct option based on the statements given below:

Assertion (A): The addition reaction of water to but-1-ene in an acidic medium yields butan-1-ol.
Reason (R): Addition of water in an acidic medium proceeds through the formation of a primary carbocation.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.