Plutonium-239 ($^{239}_{94}\text{Pu}$) undergoes decay by releasing $\alpha$-radiation. Which nuclide is produced in one of these decay equations? (The product nuclides are shown as X.)
- A$^{235}_{92}\text{X}$
- B$^{237}_{92}\text{X}$
- C$^{239}_{93}\text{X}$
- D$^{239}_{95}\text{X}$