JEE Main 2020 Chemistry question

Consider the complex ions, trans- (A) and cis- (B). The correct statement regarding them is :

• (A)both (A) and (B) can be optically active
• (B)both (A) and (B) cannot be optically active
• (C)(A) can be optically active, but (B) cannot be optically active
• (D)(A) cannot be optically active, but (B) can be optically activeCorrect