A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the ____________________?
(A) Atomic weight of the metal is 4
(B) Equivalent weight of the metal is 4
(C) Atomic weight of the metal is 2
(D) Equivalent weight of the metal is 8

