The author's initial description of the approaching polar bears impacts the text by creating a sense of urgency and tension in the situation. Depending on how the description is framed, it could highlight the mother bear's intention, Thayer's emotional state, or the behavior of the cubs.
Based on the answer choices provided:
- A suggests a purposeful approach, which could build tension as the reader wonders about the bears' intentions.
- B indicates panic, heightening the stakes of the moment.
- C focuses on Thayer’s protective instincts, adding an emotional layer to her character.
- D highlights the dynamics of the mother and cubs, which could create a contrast between parental urgency and the innocence of the cubs.
To determine the specific impact, we would need to consider the text's specific language and context surrounding this description. However, if we base it on the typical conventions of animal encounters in literature, A or D would likely be most impactful in emphasizing the dramatic tension and character response.
Choose the option that best aligns with the specific language and themes present in the text.