No.
personification is when you give an inhuman object human abilities.
for example: the thorn poked me
This is all pretty subjective because one person may have one type of a feeling about this extract, and the other person may have completely different feelings.
For me personally, this simile creates a gloomy mood. The simile 'the hollow halo it was in was like an icy crystal cup' creates a gloomy and cold atmosphere in my opinion.
I believe it's
B. Were swimming
Answer:
I am sorry if any of them are wrong
1. Simple (a)
2. Compound (b)
3. Compound (b)
4. Simple (a)
5. Simple (a)
6. Compound (b)
7. Run-on (c)
8. Compound (b)
9. Compound (b)
10. Simple (a)
11. Run-on (c)
12. Simple (a)
13. Compound (b)
14. Run-on (c)
15. Simple (a)
16. Simple (a)
17. Compound (b)
18. Simple (a)
19. Run-on (c)
20. Compound (b)
A more natural and efficient way to run (last one)