Nucleus p decays in two stages to produce nucleus q. which decay sequence will result in the highest number of neutrons in nucleus q?

A beta particle followed by another beta particle. Consider it beta positive decay in which a proton decays to form a neutron,positron and electron neutrino.

Assuming you're referring to significant figures, none of these answer choices are shown to be zero as significant digits. did you, by chance, forget to add something?