Which of the following coordination entities will show geometrical isomerism ?

Options

A. `[PtCl_(3)(NH_(3))]^(+)`
B. `[PtCl_(2)(NH_(3))_(2)]^(0)`
C. `[PtCl(NH_(3))_(5)]^(3+)`
D. `[Co(NH_(3))_(6)]^(3+)`

Answer

B