A uranium nucleus, $^{235}_{92}\text{U}$, goes through a chain of decays. Over the course of the decay sequence, two $\alpha$-particles and one $\beta^-$ particle are released. This produces a nucleus of actinium, Ac. What is the correct notation for the actinium nuclide that is produced?
- A$^{227}_{87}\text{Ac}$
- B$^{227}_{89}\text{Ac}$
- C$^{231}_{87}\text{Ac}$
- D$^{231}_{89}\text{Ac}$