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Answer:
"The water rises and the band plays ragtime", and "Stewards finish waking their passengers below; life preservers are tied on; some men smile at the precaution"
Explanation:
Options A and D are correct, I hope this helps you :)
I am not completely sure, but I would say that being the last of a long line of speakers refers to temporal context. Since you are last, it means that a long time will pass since it is your turn.
A. Gloomy
This is because if you read it, it is definitely not bittersweet. Ravens are signs of death and this is not murderous because no one is really getting murdered, its just the gloomy feeling of not knowing and how it is constantly happening.