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>).
It is a phrase that is commonly said and it doesn’t compare any two things, so it is an idiom.
The correct answer is B.
In "Araby," the boy learns that his love for Mangan's sister is in vain, that Araby is not an exotic event (despite its exotic-sounding name), and that he will not be able to buy a gift for Mangan's sister.
What he does not learn, however, is that Mangan's sister has feelings for him, too. The only thing he learns is that she is disappointed she cannot attend Araby because she has a prior commitment.