Answer:
it's a run on sentence
Explanation:
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The answer to the given question above would be option A. The one that <span> Wiesel is establishing and how is </span><span>ethos by appeal to his authority in having survived the Holocaust. Hope this answers your question. Have a great day ahead!</span>
The last sentence used a formal writing style
As far as i recall it is because the mixture and type of gases they attempted to use were more or less futile to sustain a air balloon to successfully travel and a medium rate of speed, and were over-encumbering and heavy.
Your answer would be "D" because it explained everything is beautiful but at the end it said, "But within the dense shadows, all seemed dark and gloomy as the grave." Hope this helps!