Which key detail is refined by paragraph 4?

the correct answer can either be a or b because it could be both but you should probally choose b

perhaps, jefferson is the best spokesman that speak about american ideals of equality and liberty.

no one should be immune to the law because if there is an existence of someone that is above the law, a true equality would never be achieved

hope this

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sentence lenght varies according to word choice.you select which word to use and that will require to use other expressions that collocate with the word chosen.sentence length will vary   according to the choice of words you make to express your ideas.