JEE Main 2024 Chemistry question

Given below are two statements: one is labeled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In aqueous solutions Cr is reducing while Mn is oxidising in nature. Reason (R): Extra stability to half filled electronic configuration is observed than incompletely filled electronic configuration. In the light of the above statements, choose the most appropriate answer from the options given below:

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