Answer:
C) Helen falls in a heap on the floor and begins to sob because she has never felt so lonely.
Explanation:
From the paragraph, the tone is that of loneliness and regret at leaving home because she is not sure she made the right decision.
So falling in a heap and sobbing because of her loneliness consistently reflects the tone of regret and loneliness.
An adjective clause, or relative clause, is a form of a structured clause that works to explain a noun in a sentence. It features as an adjective even though it is made up of a set of phrases instead of just one word. inside the case of an adjective clause, all the words paintings collectively to modify the noun or pronoun.
Stephanie studied every night, which helped her become a better student. is a nonessential clause.
What helped her become a better student is an essential clause.
What helped her become a better student is an adjective clause.
A nonessential clause is essentially an aside or provider of superfluous information about a preceding word that might be interesting but is insignificant to the sentence's main point.
Essential clauses modify keywords and are important to the main point of a sentence. Nonessential clauses provide superfluous information that, while interesting, does not change the main point of a sentence.
Learn more about adjective clauses here
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