I think its A. They establish this section's grim mood. Hope thus helps :D
The answer to this question is "<em>There are various ways to determine the meaning of a word, including dictionaries, thesaurus, and context clues.</em>" The reason why is because when we are reading a story the definition of the word is not always included, however the author might leave a portion of text which might indicate what the meaning might be. Then there is the case where there is no context clues that the author left us and so instead we look up the word in the dictionary. The last one is where at the end of the book the thesaurus is found there they have definitions of the words that are found in the book. Hope this helps!
