The Heat of Combustion,Δ_rH_comb,of 1-Butene(l),C₄H₈(l),is -2696

The heat of combustion,Δ_rH_comb,of 1-butene(l) ,C₄H₈(l) ,is -2696.9 kJ/mol.From the following values of Δ_fH° CO₂(g) = -393.5 kJ/mol and Δ_fH° H₂O(l) = -285.8 kJ/mol,calculate the standard enthalpy of formation of butene(l) .

A) +2017 kJ/mol
B) -2017 kJ/mol
C) -3376 kJ/mol
D) -107.7 kJ/mol
E) -20.30 kJ/mol