Answer:
*She thought of her last day in middle school, seven years ago, when Sarah had given her an iPod.* *She had felt ecstatic that day when she realized she would be able to listen to her favorite songs and fend off comments from her cousins about how little she knew about music.
Step-by-step explanation:
Flashback is a transition to an earlier time in the story, interrupting the chronological order of events. It is commonly used to give the reader additional information about the characters' past. In the passage we are studying here, the flashback comes in the form of Helen's own memories. It tells the reader how Helen felt relieved to be given an iPod so that she could listen to her favorite songs without being criticized.