The Main Reason That Massive Nuclei Don't Simply Shed Protons $\boldsymbol{A}$

Multiple Choice

The main reason that massive nuclei don't simply shed protons to relieve the instability caused by too much electrostatic repulsion is that

A) Energy would not be conserved for typical values of $\boldsymbol{A}$ .}
B) This would lead to openings in proton energy levels.
C) Protons aren't repelled as strongly as alpha particles.
D) Isolated protons can't exist outside an atom.