Question 2 of 23 Which option is a clear example of a non sequitur?
A. No one believes in gremlins, but that's because gremlins are
invisible.
B. If you like hip-hop, you'll definitely love Renaissance art and
sculpture
C. Traveling solo is the best way to travel because of its clear
superiority.
D. Three mimes walked past me just now. Is everyone in this city a
mime?

the answer to your question would be that the sentences that contain an adverb clause are the following ones: "darla set up a studio because she enjoyed painting" and "as aaron was having a midnight snack, he heard a loud noise coming from the basement". that is, your answer would be options 1 and 2.

an adverb clause is a group of words that functions as an adverb in a sentence. they are dependent clauses so, as such, they must have a subordinating conjunction to connect them to the rest of the sentence.   in this case, the subordinating conjunctions connecting the dependent clauses to the rest of the sentence are the following ones: as (introducing information about time) and because (introducing the reason why darla set up a studio).