Assertion: The mixing of d and p orbitals does not occur in octahedral complexes which have centre of symmetry, like [Ni(NH₃)₆]⁺² and [Co(NH₃)₆]⁺³_. Reason: In these cases, the metal ligand bonds vibrate so that the ligands spend most of their time out of their centrosymmetric equilibrium position.

There are two statements, Assertion (A) and Reason (R). Consider both the statements independently and mark your answer as under:

1. A and R are both correct and R is the correct explanation of A.
2. A and R are both correct and R is not the correct explanation of A.
3. A is correct and R is incorrect.
4. A is incorrect and R is correct.
5. A and R are both incorrect.