Concept:Understand the precise meanings of similar-sounding words (depose, deplore, deport) and match them to context.
Explanation:-
Depose means to remove someone from a position of power (e.g., a king deposed). In sentence 1, "depose himself" is incorrect; it should refer to acting, not removal from power.
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Deplore means to strongly disapprove or express regret (e.g., deplore violence). Sentence 2 says "enthusiastically declare they deplore" – such enthusiasm contradicts the negative meaning of deplore, so it is wrong.
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Deport means to expel someone from a country for legal reasons. Sentence 3 uses "deport someone from a country" correctly, as it fits the meaning.
Only sentence 3 uses the word appropriately.
Answer:D. 3 only