Muons can decay via the weak interaction into electrons and neutrinos. One such decay is

\[{\mu ^ + } \to {e^ + } + {v_e} + {\bar v_\mu }\]

(i) Using the table provided, show that in this decay, lepton number L, electron lepton number L_e and muon lepton number L_μ are all conserved.

(ii) Label the Feynman diagram below for the decay of a positive muon (μ⁺).