Which of the following complex ion/compound is low spin complex?

$\begin{array}{l}\Rightarrow \left[\mathrm{Cr}(\mathrm{CO}{)}_6\right] :\text{ Hyb. }{\mathrm{d}}^2{\mathrm{sp}}^3\text{ Low spin complex }\\ \Rightarrow {\left[\mathrm{Zn}(\mathrm{CN}{)}_4\right]}^{2-} : {\mathrm{Zn}}^{2+}\text{ is present as }3{\mathrm{d}}^{10} \\ \Rightarrow {\left[\mathrm{Sc}{\left({\mathrm{NH}}_3\right)}_6\right]}^{3+} : {\mathrm{Sc}}^{3+}\text{ is present as }3{\mathrm{d}}^0 \\ \Rightarrow {\left[{\mathrm{CoF}}_6\right]}^{3-} : {\mathrm{Co}}^{3+}\text{ is present as }3{\mathrm{d}}^6\text{-WFL is present }\\ \end{array}$