I would think D. using an online bookmark. That is to save or tag websites for later viewing.
inform the reader of Mrs. Flowers’s social position in Black Stamps.
Answer:
I would say D
Explanation:
Just "martial arts and acrobatics" doesn't specify the moves. By adding "those in", it shows that the <em>moves</em> in martial arts and acrobatics are what's similar.
Hopefully this helps :)
Answer: It allows readers to approach a "forbidden door."
Explanation: just took the test