Select the correct option:
The researcher's hypothesis was not only radical but also diametrically _______ to the foundational assumptions of her discipline.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. opposed.
Context: The sentence compares the researcher’s hypothesis with the foundational assumptions of her discipline, showing that the two are completely different in direction or nature. Collocation after diametrically — the standard and correct pairing is diametrically opposed.
Analysis of the given options:
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Opposed: in complete disagreement; directly contrary.
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Contradictory: mutually inconsistent, but not used idiomatically with "diametrically".
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Divergent: moving apart, but does not express direct contradiction.
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Compatible: able to exist together; opposite of the required meaning.
Correct word/ phrase: opposed
Final sentence: The researcher’s hypothesis was not only radical but also diametrically opposed to the foundational assumptions of her discipline.
Hence, the chosen option is correct.