JEE Main 2018 Chemistry question

The oxidation states of Cr in [Cr(HO)]Cl, [Cr(CH)], and K[Cr(CN)(O)(O)(NH)] respectively are :

• (A)+3, +4, and +6
• (B)+3, +2, and +4
• (C)+3, 0, and +6Correct
• (D)+3, 0, and +4