DIt follows Vander-Waal's equation
d
The Vander Warl's equation is an equation of state that corrects for two properties of real gases: the excluded volume of gas particles and attractive forces betweew gas molecules.
The Vanderwall's equation is frequently presented as
$\left(P+\frac{a n^{2}}{V^{2}}\right)(V-n b)=n R T$
The constants $a$ and $b$ represents the magnitude of intermolecular attraction and exclucled volume respectively, and are specific to a particular gas.
Correct choice - option - $D$