The concert having been finished and the audience having filtered out, the maestro relaxed in the dressing room with the impresario.
POE:
Stop sign: 'having.....relaxed'.
Eliminate (A) & (E)- Tense error.
Eliminate (B) - 'he' is ambiguous here.
Eliminate (D) - change of meaning and tense error; not cleared which thing happened first(double past). A) The concert
having been finished and the audience having filtered out, the maestro
relaxed in the dressing room with the impresario.
B) Because the maestro had finished the concert and because the audience had been filtered out,
he relaxed in the dressing room with the impresario.
C) Since the concert had been finished and the audience had filtered out, the maestro relaxed in the dressing room with the impresario. -
CORRECTD) Since the concert
had finished and the audience
had filtered out, the maestro
had relaxed in the dressing room with the impresario.
E) The concert
having been finished and the audience having filtered out, the maestro
had relaxed in the dressing room with the impresario.