Four balls each of radius 10 cm and mass 1 kg, 2 kg, 3 kg and 4 kg are attached ti the periphery of massless plate of radius 1m. What is moment of inertia of the system about the centre of plate? A. 12.04kg−m² B. 10.04kg−m² C. 11.50kg−m² D. 5.04kg−m²