An Oxygen-15 Nucleus ${}^{15}_{8}$ O,decays to Another Atomic Nucleus by Emitting a β⁺ Ray

An oxygen-15 nucleus, ${}^{15}_{8}$ O,decays to another atomic nucleus by emitting a β⁺ ray.What is the other atomic nucleus?

A) ${}^{15}_{7}$ N
B) $\begin{array} { c } 16 \\8\end{array}$ F
C) ${}^{15}_{6}$ C
D) ${}^{14}_{8}$ C
E) ${}^{17}_{7}$ N