Equal masses of $H_2, O_2$ and methane have been taken in a container of volume V at temperature $27^oC$ in identical conditions. The ratio of the volumes of gases $H_2: O_2: methane$ would be -

Question

( A ) 8 : 16 : 1
( B ) 16 : 8 : 1
( C ) 8 : 1 : 2
( D ) 16 : 1 : 2