How do oppositional context clues aid readers?

Oppositional context clues are beneficial for readers because they help clarify the meaning of a term by illustrating what it is not. This tactic enables readers to narrow down the possible meanings of unfamiliar words or phrases through contrast. By identifying the characteristics or examples that differentiate the term from others, readers can form a clearer understanding of its definition. For instance, if a text describes something as "not bright, dull, or lifeless," it effectively communicates the meaning of "dull" by presenting oppositional clues.

The other options may focus on providing definitions, synonyms, or examples, but they do not leverage the power of negation and contrast in the same way that oppositional context clues do. Identifying what a term does not refer to can often illuminate its meaning more effectively than providing similar terms or definitions.