GAUSS8 2023 Problem 7

In the addition shown, P and Q are each equal to a digit. The value of P+Q is

\begin{array}{rrrrr} &1&0&1&3 \\ +& P &Q &P& Q \\ \hline &2&0&2&3 \end{array}

Answer Choices
A. 4
B. 1
C. 0
D. 3
E. 5