This main house curtain is used to open and close a show. a Grand Drape b Cyc C Scrim d Fly

The correct answer is a. Grand Drape.<br /><br />The main house curtain used to open and close a show is called the Grand Drape. It is the large, heavy curtain that is typically drawn across the stage at the beginning and end of a performance. The Grand Drape is usually made of a heavy, opaque fabric and is used to conceal the stage from the audience until the show begins.