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

Assertion (A) : Aluminium is extracted from bauxite by the electrolysis of molten mixture of Al₂O₃ with cryolite.

Reason (R) : The oxidation state of Al in cryolite is +3.

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

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