Under standard temperature $(T)$ and pressure $(P)$ conditions, $128 \: g$ of an ideal has molecule $A$ occupies a volume of $1 \: L$. The gas molecule $A$ obeys the relationship $\text{RT=0.25 PV}$. $R$ and $V$ are universal gas constant and ideal gas volume, respectively. The molecule  $A$ is

1. $\text{CO}_2$
2. $\text{H}_2$
3. $\text{N}_2$
4. $\text{O}_2$