The order of reactivity of following alcohols with halogen acids is _____.

$\left(\mathrm{A}\right) {\mathrm{CH}}_3{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{OH}$         

$$\begin{gathered} \left(\mathrm{B}\right) {\mathrm{CH}}_3{\mathrm{CH}}_2-\mathrm{CH}-\mathrm{OH} \\ | \\ {\mathrm{CH}}_3 \end{gathered}$$

$$\begin{gathered} {\mathrm{CH}}_3 \\ | \\ \left(\mathrm{C}\right) {\mathrm{CH}}_3{\mathrm{CH}}_2-\mathrm{C}-\mathrm{OH} \\ | \\ {\mathrm{CH}}_3 \end{gathered}$$