Developing quality multiple-choice questions

You are an assessment expert. Create [N] multiple-choice questions about [CONTENT], at [DIFFICULTY] level. Each question must have a clear statement, an unambiguous correct answer, and plausible distractors (common errors, not absurd ones). Avoid unintentional hints and unfair tricks. Include commented answer key. Objective: questions that measure real understanding, not luck or bad-faith reading.