Which one of the following gives turbidity within a few minutes with HCl + anhydrous ${\mathrm{ZnCl}}_2.$

Lucas reagent is $\mathrm{HCl}+\mathrm{anhydrous} {\mathrm{ZnCl}}_2$;

$1^0$ alcohols do not give turbidity with Lucas reagent at room temperature;

$2^0$ alcohols give turbidity within few minutes with Lucas reagent;

$3^0$ alcohols give immediate turbidity with Lucas reagent;

Among the given options, alcohol derivative present in option (c) is secondary (or 2⁰) and shows turbidity after few minutes of addition of Lucas reagent.