The number of geometrical isomers and optical isomers of $\left[\mathrm{Pt}\left({\mathrm{NH}}_3\right)\left(\mathrm{Br}\right)\left(\mathrm{Cl}\right)\left(\mathrm{Py}\right)\right]$ are respectively

There are 3 geometrical isomers and 0 optical isomers of $\left[\mathrm{Pt}\left({\mathrm{NH}}_3\right)\left(\mathrm{Br}\right)\left(\mathrm{Cl}\right)\left(\mathrm{Py}\right)\right]$

Geometrical Isomers$\to$ 3

Optical Isomers $\to$ 0