Setting is basically the location where the text is taking place. So when you are describing the setting, you are describing the place where something is happening. In this case, the option from the play which describes the setting is C. and alarm clock sounds from within the bedroom at right... It states clearly where the sound is coming from.
which of the following lines from the play describe the setting ? A. Weariness, in fact, has won in this room. B. Ruth is about thirty. She calls to the boy, between yawns, in a slighty muffled voice. In a few years . . . she will be known among her people as a "settled woman". C. And alarm clock sounds from within the bedroom at right . . . D. She crosses sleepily towards the window