A block with a square base measuring $a \times a$ and height h, is placed on an inclined plane. The coefficient of friction is $\mu$. The angle of inclination $(\theta)$ of the plane is gradually increased. The block will

Question

(a) topple before sliding if $\mu > \large\frac{a}{h}$ (b) topple before sliding of $\mu < a/h$ (c) slide before toppling if $\mu >\large\frac{a}{h}$ (d) slide before topping if $\mu < \large\frac{a}{h}$