Write nuclear reaction equation for Electron capture of $_{54}X_e^{120}$

Question

$\begin{array}{1 1} _{54}Xe ^{120}+_{+1}e^0 \to _{55}X^{120} \\ _{54}Xe ^{120}+_{-1}e^0 \to _{55}X^{120} \\ _{54}Xe ^{120} +_{-1}e^0 \to _{55}X^{120} +\gamma \\ _{54}X ^{120}+_{-1}e^0 \to _{55}X^{120} +\bar{\gamma}\end{array} $