The decay chain below shows two $\alpha$-particles and one $\beta$-particle. $^{217}_{85}\text{At} \xrightarrow{\alpha} V \xrightarrow{\alpha} W \xrightarrow{\beta} X$ Which nuclide is X?
- A$^{213}_{85}\text{At}$
- B$^{215}_{77}\text{Ir}$
- C$^{209}_{82}\text{Pb}$
- D$^{217}_{81}\text{Tl}$