Answer: B —she had chosen C . A quick glance at the key reminded her that the author’s tone was “nostalgic,” not “optimistic.” She wrote a note in the margin: Tone = nostalgia; watch for emotional cues .
“Study break?” her aunt asked, eyes twinkling.
Instead of panicking, Lena took a breath and turned to her trusty companion— Set 5 . She set a timer for 45 minutes, opened the physics practice paper, and let the world fade away. When the timer rang, she paused, looked up, and saw her aunt’s smiling face at the doorway, holding a tray of warm dumplings.