Consider the following statements:

(P) $\left[\mathrm{Mn}{\left({\mathrm{H}}_2\mathrm{O}\right)}_4\right]{\mathrm{SO}}_4$ is paramagnetic.

(Q) Crystal field splitting energy (i.e. ${\mathrm{\Delta }}_0$ ), in ${\left[\mathrm{Cr}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{3+}$ is higher than in ${\left[\mathrm{Cr}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{2+}$.

(R) Wilkinson catalyst $\left[\mathrm{RhCl}{\left({\mathrm{Ph}}_3\mathrm{P}\right)}_3\right]$, a red-violet complex is diamagnetic and square planar.

(S) $\mathrm{Hg}{\left[\mathrm{Co}(\mathrm{SCN}{)}_4\right]}_3$, a deep blue complex is paramagnetic and tetrahedral.

and of these select the correct set from the given options.