Final answer:
The setting of Olivia's play, where Gabourey must battle the elements to find her dog during a snowstorm and decide whether to aid an old man, is exterior, snowstorm, day.
Step-by-step explanation:
The setting of Olivia's play is critical as it shapes the central conflict and the conditions that the protagonist, Gabourey, must battle. Given that Gabourey is lost in a snowstorm during her search and faces the decision whether to help an old man or continue her search for her dog, the setting is both outdoors and time-sensitive. Based on the information provided in the question, the correct setting is option 4) exterior, snowstorm, day. The aspect of daylight is an important element, as the dwindling of light compounds the urgency of Gabourey's dilemma. This setting heightens the stakes of the play by introducing a harsh environment where the survival of both humans and animals is at risk.