Thank you for the opportunity to help you with your question!

Since you know the mass defect, use \( E = mc^2\) to find the binding
energy per mole. Then find the binding energy per atom, then per
nucleon, since there are 16 nucleons per atom of \(^{16}O\

E = (0.00239 amu) *(3 * 10^8)^2

E =(0.00239 * 1.66X10^{-27} ) * (9 *10^16)

= 2.39*1.66 *9 * 10^-14

= 3.571 * 10^-13

so third option is correct

Please let me know if you need any clarification. I'm always happy to answer your questions.