If the binding energy per nucleon in `._(3)Li^(7)` and `._(2)He^(4)` nuclei are respectively `5.60` MeV and `7.06` MeV, then the ebergy of proton in the reaction `._(3)Li^(7) +p rarr 2 ._(2)He^(4)` is
A. `29.6 MeV`
B. `2.4 MeV`
C. `8.4 MeV`
D. `17.3 MeV`