A hollow sphere and a solid sphere of the same material and equal radii are heated to the same temperature. In this case,

• A. The cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant
• B. Both the spheres will emit equal amount of radiation per unit time in the beginning
• C. Both will absorb equal amount of radiation from the surrounding in the beginning
• D. Both B & C