The statement that offers the best summary of the central idea of this speech is option D. Caesar needs to be assassinated violently to send a message to the people. Summary is a comprehensive and usually brief abstract, recapitulation, or compendium of previously stated facts or statements.
A summary is a brief statement or restatement of main points, esp. as a conclusion to a work: a summary of a chapter
Julius Caesar is a book written be Shakespeare on the jealous conspirators convince Caesar's friend Brutus to join their assassination plot against Caesar. To stop Caesar from gaining too much power, Brutus and the conspirators kill him on the Ides of March. Mark Antony drives the conspirators out of Rome and fights them in a battle.
Therefore, the correct answer is as given above
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