Two different parent nuclei each form 714N{}^{14}_{7}\mathrm{N}714N. Parent P\mathrm{P}P undergoes beta-minus decay. Parent Q\mathrm{Q}Q undergoes beta-plus decay. Which pair gives the parent nuclei?
P:613C\mathrm{P}:{}^{13}_{6}\mathrm{C}P:613C; Q:815O\mathrm{Q}:{}^{15}_{8}\mathrm{O}Q:815O
P:614C\mathrm{P}:{}^{14}_{6}\mathrm{C}P:614C; Q:814O\mathrm{Q}:{}^{14}_{8}\mathrm{O}Q:814O
P:814O\mathrm{P}:{}^{14}_{8}\mathrm{O}P:814O; Q:614C\mathrm{Q}:{}^{14}_{6}\mathrm{C}Q:614C
P:815O\mathrm{P}:{}^{15}_{8}\mathrm{O}P:815O; Q:613C\mathrm{Q}:{}^{13}_{6}\mathrm{C}Q:613C