Based on the Following Data,what Is the Bond Energy of the C=C

Multiple Choice

Based on the following data,what is the bond energy of the C=C bond in 1,1-difluoroethylene,CF₂CH₂?
CH₄(g) → C(g) + 4H(g) ; ΔH = 1656 kJ
CF₄(g) → C(g) + 4F(g) ; ΔH = 1756 kJ
CF₂CH₂(g) → 2C(g) + 2H(g) + 2F(g) ; ΔH = 2317 kJ

A) 611 kJ/mol
B) 845 kJ/mol
C) 820 kJ/mol
D) 1706 kJ/mol
E) 1910 kJ/mol