The reaction for which standard enthalpy of combustion of reactant is eight times of the standard enthalpy of formation of its product is
A. 8C (diamond)+O2(g)→8CO2(g)
B. 4P4(red)+20O2(g)→8P2O5(s)
C. P4(White)+5O2(g)→P4O10(s)
D. S8(rhombic)+8O2(g)→8SO2(g)