1.The fog is not permanent it moves it stays only for a moment as in the last sentence it moves on.
2. D a metaphor it using the cat as a metaphor for the fog.
<span>The tone of the letter is too informal and lacks details needed for a good resolution.
Hope this helps! Please let me know if I'm wrong :)</span>
The answer is D
(the verb is first rather than within the sentence)
Not to be rude, but this question shouldn't be in the English section because it's a word problem. Please post in the mathematics section. :) Good luck!!!