Which one is the most likely structure of ${\mathrm{CrCl}}_3\text{. }$ $6{\mathrm{H}}_2\mathrm{O}$ if $\frac{2}{3}$ of total chlorine of the compound is ppt by adding ${\mathrm{AgNO}}_3$ to its aqueous solution

By adding  ${\mathrm{AgNO}}_3$ $\frac{2}{3}$ of the compound's total chlorine is precipitated

Only one chloride ion is accessible for ionization due to the compound's aqueous solution 

$\left[\mathrm{CrCl}{\left({\mathrm{H}}_2\mathrm{O}\right)}_5\right]{\mathrm{Cl}}_2\cdot {\mathrm{H}}_2\mathrm{O}$