The time taken for effusion of $32 mL$ of oxygen gas will be the same as the time taken for effusion of which gas sample under identical conditions : (Take $\sqrt{2}=1.4, \sqrt{3}=1.7)$
(A) $64 mL$ of $H _{2}$
(B) $50 mL$ of $N _{2}$
(C) $44.8 mL$ of $CH _{4}$
(D) $22.4 mL$ of $SO _{2}$
