GAUSS7 2022 Problem 17

In the sum shown, each letter represents a digit from 1 to 9, inclusive. The value of P+Q+R is

\begin{array}{rrrr} &&&Q& R& \\ &&P &P& P \\ +&& P &P& P \\ \hline &2&0&2&2 \end{array}

Answer Choices
A. 13
B. 14
C. 15
D. 16
E. 17