Which nuclear equation represents the beta decay of an argon (Ar) nucleus into potassium (K)?
- A$^{44}_{18}\text{Ar} \rightarrow {}^{40}_{19}\text{K} + {}^{4}_{2}\text{He}$
- B$^{40}_{18}\text{Ar} \rightarrow {}^{40}_{19}\text{K} + {}^{0}_{+1}\text{e}$
- C$^{40}_{18}\text{Ar} \rightarrow {}^{40}_{19}\text{K} + {}^{0}_{-1}\text{e}$
- D$^{40}_{18}\text{Ar} \rightarrow {}^{40}_{19}\text{K} + {}^{0}_{0}\gamma$