Final answer:
The word 'struts' signifies that Brom enters the room with confidence, demonstrating a self-assured presence at the Van Tassels' party.
Therefore, the correct answer is: option A). enters the room with confidence
Step-by-step explanation:
The author's use of struts in the context of the question indicates that Brom enters the Van Tassels' party with a certain display of confidence.
Rather than being late, uninterested, or cautious, the word struts conveys an image of Brom carrying himself with a kind of self-assured swagger.
This choice of verb helps the reader visualize the scene and Brom's attitude as he makes his entrance.
Such vivid language is a key element in storytelling, as it pulls the reader into the action by creating a strong mental image and setting the tone for the character's presence in the scene.