In triangles $ABC$ and $PQR,$ $\overline{AB}= \overline{PR},\overline{BC} = \overline{RQ}$ and $\overline{AC} = \overline{PQ}$. $\bigtriangleup ABC$ is congruent to

Question

$( A ) \bigtriangleup QRP \\ ( B ) \bigtriangleup PQR \\ ( C ) \bigtriangleup PRQ \\ ( D ) \bigtriangleup RPQ$