In three beakers labeled as (A), (B) and (C), 100 mL of water, 100 mL of 1 M solution of glucose in water and 100mL of 0.5 M solution of glucose in water are taken respectively and kept at same temperature

Which of the following statements is correct?

Vapour pressure of a solution containing non-volatile solute is less than that of the pure solvent. The decrease in vapour pressure depends upon the quantity of non-volatile solute present in it. Hence, vapour pressure of A > C > B.

For the same non-volatile solute 

$∆\mathrm{P}\infty \frac{1}{{\mathrm{p}}_{\mathrm{solution}}}\infty {\mathrm{W}}_{\mathrm{non}-\mathrm{volatile} \mathrm{solute}}$