No it is not. It is an adverb phrase since it lacks a subordinating conjunction.
Adverb clauses must be preceded or started by a subordinating conjunction such as after, if, because or although. For a sentence to qualify as an adverb clause it must include in its body a subject and a verb.
As a general rule you can use the following formula:
An adverb clause equals a subordinate conjunction plus a subject plus a verb, and it should be answering how? when? where? or why?
Answer: Took
Explanation: The traffic on the way home was so bad i wish we <u>took</u> a different route.
Hope this helps.
It's definitely D.
It's for sure not C. And I've never read the full story, but this passage doesn't indicate a depressing mood of foreshadowing danger. And the vocabulary in the writing doesn't impact the story itself.
