The correct options are A and D. Public and Speech are the context clause. A context clause is a hint that is given by the author to understand the difficult word.
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What is a context clause?</h3>
Context clauses are clauses that are used to express similar, opposite, and word-structure clues-words.
Thus, the word public and speech are the context clause that has similarities or synonyms.
Learn more about the context clause here:
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Answer:
These descriptive details explain that Joe is self-confident.