AP English Language

The key focus is: B.The effectiveness of communication and expression.

Explanation:

Writing style is about how effectively an author communicates their ideas. It involves the choice of vocabulary, sentence structure, tone, and overall approach to expressing thoughts. A good writing style ensures that the message is clear, engaging, and appropriate for the audience and purpose. The goal is always to make communication as effective as possible, not to focus solely on vocabulary complexity, sentence length, or passive voice.

The other options are secondary considerations:

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