Explanation: when writing, an author can have different purposes, for example: to entertain, to persuade, to inform, to criticize, etc. In the given passage, we can see an example of a text with the purpose of persuading of convincing the audience, we can know that because the passage clearly states an opinion (with supporting details) about how Burns Road Library is the greatest library in Brenner.
I would say that the principle means of characterization employed by the author is dialogue. Since Romeo and Juliet is a play, everything we know actually comes from the conversations, be it a dialogue, or a monologue.
