The boiling point of water and HCl are 100∘C and 86∘C respectively. An azeotropic mixture boils at about 120∘C. Fractional distillation of this solution will give :
a. Pure HCl first at 86∘C
b. Pure H2O then at 100∘C
c. A mixture of HCl and H2O in the ratio 359373
d. A mixture of HCl in the ratio in which they are present in mixture