Answer:
Astra herself.
Explanation:
It will be discovered or understood by the readers, especially at the end of the story tagged "the message" that, Astra later realizes that she was the one that actually left the holo drive open. This means that, she left it open by herself.
Answer: He knew which city he had just come from, He had pointed that arrow back toward his starting point, which oriented the signs properly for his destination and a third city.
D. Scan magazine from back to front
-It's what I do!... And see other people do! Although C. Might have a slight chance of being the answer, I doubt it. Hope this helps! Be confident and don't over think it! You'very got this! Hope this helps!
