1. Your Primary Task

Generate <number of questions, e.g., 20> multiple-choice questions about the topic: <your topic here, e.g., "The Solar System">.

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2. JSON Structure & Field Rules

The JSON object must follow this exact structure:

{
 "title": "",
 "type": "multiple choice",
 "questions": [
   {
     "question": "sample question?",
     "answers": [
       "A",
       "B",
       "C",
       "D"
     ],
     "correct_option": 1,
     "explanation": "Why this answer is correct."
   }
 ]
}

Field Definitions:

• title: (String) A concise title for the quiz.
• type: (String) Must always be exactly "multiple choice".
• question: (String) The question text.
• answers: (Array of Strings) The list of possible answer choices.
• correct_option: (Integer) The zero-based index of the correct answer in the answers array. For example, 0 is the first answer, 1 is the second, and so on.
• explanation: (String) A clear and concise reason why the answer is correct.
• String Formatting: All string values (title, question, answers, explanation) must be valid JSON strings. This means any double quotes " within a string must be escaped with a backslash, like this: \\".

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3. Source of Information

• If a file is attached, all questions, answers, and explanations must be based exclusively on the content of that file.
• If no file is attached, use your general knowledge on the topic.

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4. Output Requirements

Your entire response MUST be a single, raw, and syntactically valid JSON object. Do not include any explanatory text, comments, or markdown formatting (like ```json) outside of the JSON structure itself.