JEE Main 2021 Chemistry question

Assertion (A) : Lithium salts are hydrated. Reason (R) : Lithium has higher polarizing power than other alkali metal group members. In the light of the above statements, choose the most appropriate answer from the options given below :

• (A)Both (A) and (R) are correct but (R) is NOT the correct explanation of (A).
• (B)(A) is correct but (R) is not correct .Correct
• (C)(A) is not correct but (R) is correct.
• (D)Both (A) and (R) are correct and (R) is the correct explanation of (A).