A thin spherical shell and a thin cylindrical shell (closed at both ends) have same volume. Both...

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A thin spherical shell and a thin cylindrical shell (closed at both ends) have same volume. Both the shells are filled with water at the same temperature and are exposed to the same atmosphere. Initial temperature of water is slightly greater than that of surrounding. Then at initial moment :
(A) Rate of heat radiation from two shells will be same
(B) Rate of fall of temperature in both the shells will be same
(C) Rate of heat radiation and rate of fall of temperature, both, in cylindrical shell are less than those in spherical shell
(D) None of these
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