GKFix MCQ Question

Which of the following coordination entities is optically inactive?

• A. cis-[CrCl₂(ox)₂]³⁻
• B. [Cr(ox)₃]³⁻
• C. [Cr(en)₃]³⁺
• D. trans-[CrCl₂(ox)₂]³⁻