Which of the following can show geometrical isomerism?

Options

A. `[Pt(NH_(2)-underset(CH_(3))underset(|)(C)H-underset(CH_(3))underset(|)(C)H-NH_(2))_(2)]^(2+)`
B. `[Co(en)_(2)NH_(3)Cl]^(2+)`
C. Both (a) and (b)
D. none of these

Answer

A

Explanation