2019 Pascal Problem 21

What is the units (ones) digit of the integer equal to 5^{2019} - 3^{2019}?

\textbf{(A)}\ 0\quad \textbf{(B)}\ 2\quad \textbf{(C)}\ 4\quad \textbf{(D)}\ 6\quad \textbf{(E)}\ 8

If there are no answer choices shown, enter a numerical answer.

Full credit to this problem is given to the CEMC, you may view all Pascal contests here.