\bigtriangleupPQR\cong \bigtriangleup ABC. Which of the following is correct?

Question

( A ) \overline{BC}\cong \overline {PR}
( B ) \overline{BA}\cong \overline {PR}
( C ) \overline{BC}\cong \overline {PQ}
( D ) \overline{BC}\cong \overline {QR}