The Standard Enthalpy of Combustion for Xylene, C₈H₁₀(l), Is -3908 $\Delta$

The standard enthalpy of combustion for xylene, C₈H₁₀(l) , is -3908 kJ mol^-1. Using this information and the standard enthalpies of formation of the following, $\Delta$ H°_f:H₂O(l) = -285.9 kJ mol^-1; CO₂(g) = -393.5 kJ mol^-1, calculate the standard enthalpy of formation of C₈H₁₀(l) , in kJ mol^-1.Hint: To begin, determine the thermochemical equation associated with the standard enthalpy for the formation of xylene.

A) -669.5 kJ
B) +3228.6 kJ
C) -3228.6 kJ
D) +4587.4 kJ
E) +8485.5 kJ