Answer:
2. an adverbial clause modifying the verb are keeping
Explanation:
Adverbial clauses usually begin with a subordinating conjunction like <em>since, after </em>and <em>before</em>, and they contain a subject and a verb. Therefore, the sentence given is a complex sentence, consisting of a dependent or subordinate clause (<em>Since they already have an older cat</em>) and an independent one (<em>they are keeping the kitten in a separate room for a few days</em>).
I think it's C but I'm not really sure
The lines which are a flashback here are: She thought of her last day in middle school, seven years ago, when Sarah had given her an iPod. She had felt ecstatic that day when she realized she would be able to listen to her favorite songs and fend off comments from her cousins about how little she knew about music.
The subject of a topic sentence is called the controlling idea.
