Students quietly protest a political candidate by wearing black armbands.
<u>Explanation:
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The freedom of speech guaranteed by the Constitution is not just limited to the idea of verbal speech, but it also includes the easily and clearly interpretable idea of expressive speech devoid of words.
This refers to the unquoted freedom of expression which is ultimately a part of the freedom of speech.
In the given scenario, though the students are not using any words to protest against the candidate, their actions are expressive enough and are protected by the right to freedom of speech.