Answer :
The underlined allusions to The Wizard of Oz in the play impact the plot by suggesting a character arc about how one can find unanticipated friendships during a journey. In The Wizard of Oz, Dorothy initially dreams of leaving home but ends up realizing the value of her life at home after going on adventures and making friends in the land of Oz. This parallels with the idea that characters in the play may embark on a journey, encounter new experiences, and forge unexpected friendships along the way. By referencing this similarity, the play sets the stage for characters to undergo personal growth, develop relationships, and perhaps come to appreciate their origins or home environment in a new light.
The allusions do not necessarily imply a theme about how experiencing a new culture can make one appreciate home, as the focus is more on unexpected friendships and personal growth rather than cultural appreciation. Additionally, they do not initiate a suspenseful mood that adds tension to how the characters speak, as the purpose of the allusions is to draw parallels with The Wizard of Oz and hint at potential character developments rather than create suspense. Lastly, while The Wizard of Oz features exciting adventures, the allusions in the play do not necessarily suggest that the plot will feature similar thrilling escapades; instead, they point towards potential emotional and interpersonal journeys for the characters.