A sample of 0:1 g of water at $$100^\circ$$ C and normal pressure $$(1.013 \times 10^{5} N m^{-2})$$ requires 54 cal of heat energy to convert to steam at $$100^\circ$$.If the volume of the steam produced is 167.1 cc, the change in internal energy of thé ssample ,is

A

84.5 J

B

42.2J

C

208-7 J

D

104-3 J