From the following bond energies
`H-H` bond energy `431.37 kJ mol^(-1)`
`C=C` bond energy `606.10 kJ mol^(-1)`
`C-C` bond energy `336.49 kJ mol^(-1)`
`C-H` bond energy `410.5 kJ mol^(-1)`
Enthalpy for the reaction
`overset(H)overset(|)underset(H)underset(|)(C )=overset(H)overset(|)underset(H)underset(|)(C )+H-HtoH-overset(H)overset(|)underset(H)underset(|)(C )-overset(H)overset(|)underset(H)underset(|)(C )-H`
will be

Options

A. `-243.6 kJ mol^(-1)`
B. `-120.0 kJ mol^(-1)`
C. `553.0 kJ mol^(-1)`
D. `1523.6 kJ mol^(-1)`

Answer

B