Which of the following are inner orbital complex (i.e., involving d²sp³ hybridization) and is paramagnetic in nature
(1) [Mn(CN)₆]³⁻
(2) [MnCl₂₄]⁶⁻
(3) [Mn(CN)₆]⁴⁻
(4) [MnCl₂₄]⁶⁻ [Fe(CN)₆]³⁻ [Co(C₂O₄)₃]³⁻