The number of geometrical isomers found in the metal complexes $\left[{\mathrm{PtCl}}_2{\left({\mathrm{NH}}_3\right)}_2\right], \left[\mathrm{Ni}(\mathrm{CO}{)}_4\right], \left[\mathrm{Ru}{\left({\mathrm{H}}_2\mathrm{O}\right)}_3{\mathrm{Cl}}_3\right]$ and ${\left[{\mathrm{CoCl}}_2{\left({\mathrm{NH}}_3\right)}_4\right]}^{+}$ respectively, are:

• A

  $1, 1, 1, 1$
• Correct answer
  B

  $2, 0, 2, 2$
• C

  $2, 1, 2, 2$
• D

  $2, 1, 2, 1$

Hence, the correct answer is option: 'B'.