Which character says Caesar, beware of Brutus. Watch Cassius. Don't go near Casca. Keep an eye on Cinna. Don't trust Trebonius?

• A. Artemidorus
• B. Casca
• C. Calphurnia
• D. Antony

Answer: (A)

The idea being tested is recognizing who tries to warn Caesar about the conspiracy in Julius Caesar. The speaker is Artemidorus, a teacher who writes a letter to Caesar warning him to beware of Brutus and listing other conspirators—Cassius, Casca, Cinna, and Trebonius—and telling Caesar not to trust them. This warning appears as Artemidorus rushes to hand Caesar the letter before the Senate meet, but Caesar ignores it, focused on his path to the Capitol. The other characters aren’t the source of this specific warning: Antony is Caesar’s ally and later voices revenge after Caesar’s death; Calphurnia is Caesar’s wife who pleads with him to stay home due to omens; Casca and Trebonius are part of the plot, not the sender of this caution. So Artemidorus is the one who issues that caution through his letter.