On a Plot of the Number of Neutrons Versus the Number

On a plot of the number of neutrons versus the number of protons, a nucleus of aluminum-28 lies above the belt of stability. During the radioactive decay of aluminum-28 a beta particle is emitted, what isotope is also formed

A) ${ }_{14}^{29} \mathrm{Si}$
B) ${ }_{13}^{27} \mathrm{Al}$
C) ${ }_{14}^{28} \mathrm{Si}$
D) ${ }_{15}^{28} P$
E) None of the above