A nucleus \(_Z^AX\) has mass represented by m(A.Z). If mp and mn denote the mass of proton and neutron, respectively and BE the binding energy (in MeV), then

(a) BE = [m(A,Z) - Zm_{p} - (A - Z)m_{n}]c^{2}

(b) BE = [Zm_{p} + (A - Z)m_{n }- m(A,Z)]C^{2}

(c) BE = [Zm_{p} - Am_{n} - m(A,Z)]C^{2}

(d) BE = m(A,Z) - Zm_{p} - (A - Z)m_{n}