The intercept of plots of log V vs log T curves at constant pressure P for 1 mole gas will be

Question

$(a)\;log \large\frac{P}{R}\qquad(b)\;log \large\frac{-P}{R}\qquad(c)\;log \large\frac{R}{P}\qquad(d)\;log \large\frac{-R}{P}$