If M(A, Z), Mp and Mn denote the masses of the nucleus, proton and neutron respectively in units of u(1u=91.5MeV/c2) and BE represents its binding energy in MeV, then.
a. M (A,Z)=ZMp+(A−Z)Mn+BE/c²
b. M(A,Z)=AMp+(A−Z)Mn+BE
c. M(A,Z)=ZMp+(A−Z)Mn−BE/c²
d. M(A,Z)=ZMp+(A−Z)Mn−BE
