Complete the Following Decay $\pi$ ⁺ $\rarr$ ? + V _$\mu$
A) $\mu$

Complete the following decay. $\pi$ ⁺ $\rarr$ ? + v _$\mu$

A) $\mu$ ^-
B) $\mu$ ⁰
C) $\pi$ ^-
D) $\pi$ ⁰
E) $\mu$ ⁺