" Inner orbital complexe(s) is / are "

Assertion : Inner orbital complexes are low spin complexes . Reason : In low spin complexes , inner d-orbital (3d) is used in hybridisation .

A: [Cr (H_(2)O)_(6)]^(3+) is Inner orbital complex. R: H_(2)O is strong ligand generally

Which one of the following is an inner orbital complex as well as diamagnetic in nature?

Which of the following is inner orbital complex as well as diamagnetic in nature ?