The ionization of $\ce{CuSO4}$ in solution produces —

• a$\ce{Cu+}$ and $\ce{SO4-}$
• b$\ce{Cu^{2+}}$ and $\ce{SO4^{2-}}$
• c$\ce{Cu^{3+}}$ and $\ce{SO3^{2-}}$
• d$\ce{Cu}$ and $\ce{SO4}$