Answer:
C.
None of the other examples fit the descriptions of an aside
True, because if you communicate effectively the receiver of the information learns what it is you need to tell them.
C.
Organic gardeners rely on a variety of tricks to combat snails and slugs, including spreading coffee grounds and dryer lint around plants.
Hey there!
Here's what I'm thinking. We need to grab the reader's attention.
"Have you ever had a headache after looking at electronics so long? Would you prefer reading instead? If you say yes, you're just like so many students across America who would rather have textbooks over tablets."
If I read that, I would totally read on, and that's the sole purpose of a hook.
Hopefully this helps!