What Is the Symbol for the Nuclide with 38 Protons $\begin{array}{r}88 \\ 50\end{array}$

What is the symbol for the nuclide with 38 protons and 50 neutrons?

A) $\begin{array}{r}88 \\ 50\end{array}$
B) $\begin{array}{r}88 \\ \quad 58\end{array}$
C) $\mathrm{Sn}_{50}^{38}$
D) $\begin{array}{r}50 \\ 38\end{array}$