A cube at $100\mathrm{.}0C$ radiates heat at a rate of $80\mathrm{.}0\frac{J}{s}.$ If the length of each side is cut in half, the

rate at which it will now radiate is closest to

A$)56\mathrm{.}6\frac{J}{s}.$

B$)40\mathrm{.}0\frac{J}{s}.$

C$)28\mathrm{.}3\frac{J}{s}.$

D$)20\mathrm{.}0\frac{J}{s}.$

E$)10\mathrm{.}0\frac{J}{s}.$