The density of a rod AB increases linearly from A to B. Its midpoint is O and its centre of mass is at C. Four axes pass through A, B, O and C, all perpendicular to the length of the rod. The moments of inertia of the rod about these axes are IA, IB, IO and IC respectively.
(a) IA > IB
(b) IA < IB
(c) IO > IC
(d) IO < IC
