48. Two particles (m1 = 0.20 kg, m2 = 0.30 kg) are positioned at the ends of a 2.0-m long rod ofncgligible mass. What is the moment of inertia of this rigid body about an axis perpendicular to therod and through the center of mass?
(A) 0.48kg ●m2
(B) 0.50 kg●m2
(C) 1.2kg●m2
(D) 0.8kg●m2
(E) 0.7kg●m2