Which one of the following does not exhibit geometrical isomerism ?

Options

A. Octanedral complex with formulaa `[M X_(2) L_(4)]`
B. Square planar complex with formula `[M x_(2) L_(2)]`
C. Tetrahedral complex with formula [M A B X L]
D. Octahedral complex with formula `[M X_(2) (L - L)_(2)]`

Answer

c

Explanation

All the other three exhibit geometrical isomerism but tetrahedral complex does not.