In a Reaction Described by the Equation:2 CH₄O(g)+ 3 O₂(g) $\rarr$

In a reaction described by the equation:2 CH₄O(g) + 3 O₂(g) $\rarr$ 2 CO₂(g) + 4 H₂O(g) ,the rate of consumption of O₂(g) is 0.400 mol L^-1 s^-1. What is the rate of consumption of CH₄O(g) ?

A) 0.200 mol L^-1 s^-1
B) 0.267 mol L^-1 s^-1
C) 0.333 mol L^-1 s^-1
D) 0.400 mol L^-1 s^-1
E) 0.600 mol L^-1 s^-1