For the square planar complex |Mabcd| where M is the central atom and a, b. c, d are monodentate ligands, the number of possible geometrical isomers are

For the square planar complex |Mabcd| where M is the central atom and

1.	For the square planar complex \|Mabcd\| where M is the central atom and a, b. c, d are monodentate ligands, the number of possible geometrical isomers are
A.	1
B.	2
C.	3
D.	4
Answer» D. 4