The answer is C. Hope I helped!
Subject- The longest, most boring day of his life
Predicate- ended with a thud.
B. Voter turnout was very high, is the political parties were stronger, more people would vote and be confident to vote.
There are 5 types of context clues which include, Restatement, Comparison, Contrast, Synonym, and Example. If you are looking for a word with the same meaning as the unfamiliar word, using a synonym context clue will be most useful. This means finding words around the unfamiliar word that would make sense to replace the word that you do not know, this will then help you form a better understanding of what this unfamiliar word means.