A $\mathrm{}0.001$ $\mathrm{m}\mathrm{o}\mathrm{l}\mathrm{a}\mathrm{l}$ aqueous solution of a complex $\left[\mathrm{M}{\mathrm{A}}_8\right]$ has the freezing point of $-0.0054°\mathrm{C}$ . If the primary valency of the salt undergoes $100\mathrm{\%}$ ionization and ${\mathrm{K}}_{\mathrm{f}}$ for water $=\mathrm{1.8 }\mathrm{}\mathrm{K}\mathrm{}\mathrm{m}\mathrm{o}\mathrm{l}\mathrm{a}{\mathrm{l}}^{-1}$ the correct representation of complex is