The piece of evidence that best expresses the theme of this passage is B. "I had rather have / Such men my friends than enemies."
This refers to the central idea of a text that an author wants to convey t his readers.
Hence, we can see that based on the given text, there is the use of narration to show how Antony had a monologue where he talks about having some men such as Brutus as friends and not enemies.
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