\textbf{176.} In the reaction ${}^{237}_{92}\text{X} \rightarrow \text{Y} + 3\alpha + \beta^{-}$, how many nucleons does $\text{Y}$ have? $$224 \;(1) \qquad 225 \;(2) \qquad 226 \;(3) \qquad 228 \;(4)$$