Read the excerpt from Martine’s personal narrative about receiving a birthday gift.

I ripped carelessly through the wrapping paper to reveal a plain, brown box. My eyebrows raised in anticipation. What could be inside? My fingers worked more slowly now, pulling back the tape that held the box shut. As soon as the flaps sprung open, I peered inside. But I inwardly shuddered when I discovered three pairs of bright neon-green socks. Oh no, I thought. These look hideous. I would never wear something like these, but I also don’t want to hurt my aunt’s feelings. What should I do? I furrowed my brow and bit my lip, uncertain what to do next.

Which detail from the excerpt shows how the narrator feels?

peered inside
worked more slowly
flaps sprung open
furrowed my brow