The increasing order of the boiling points of the major products A,

$\mathrm{C}<\mathrm{A}<\mathrm{B}$

 $\mathrm{B}<\mathrm{C}<\mathrm{A}$

$\mathrm{A}<\mathrm{B}<\mathrm{C}$

$\mathrm{A}<\mathrm{C}<\mathrm{B}$