The atomic mass of ₈0¹⁶ is 15.9949amu. Mass of one neutron and one proton is 2.016490amu and the mass of an electron is 0.00055amu. The binding energy per nucleon of oxygen atom is

A. 7.97MeV
B. 11.5MeV
C. 22.8MeV
D. 82.3MeV