The Combustion of Ethylene Proceeds by the Reaction $\mathrm { C } _ { 2 }$

The combustion of ethylene proceeds by the reaction
$\mathrm { C } _ { 2 }$ $\mathrm { H } _ { 4 }$ (g) + 3 $\mathrm { O } _ { 2 }$ (g) ? 2C $\mathrm { O } _ { 2 }$ (g) + $2 \mathrm { H } _ { 2 }$ O(g)
When the rate of disappearance of $\mathrm { O } _ { 2 }$ is 0.74 mol L^-1 $s ^ { - 1 }$ ,the rate of disappearance of $\mathrm { C } _ { 2 }$ $\mathrm { H } _ { 4 }$ is ________ $\mathrm { mol } \mathrm { L } ^ { - 1 } \mathrm {~s} ^ { - 1 }$

A) 1.5
B) 0.49
C) 1.1
D) 2.2
E) 0.25