P - T graph of an ideal gas is shown . Density of the gas at A is ' d ' and then density of the gas at B is

Question

$(a)\;\large\frac{3d}{2}\qquad(b)\;\large\frac{2d}{3}\qquad(c)\;\large\frac{5d}{3}\qquad(d)\;\large\frac{3d}{5}$