طريقة الاستخدام

Extract or generate exam questions from the provided material.

**Language Rule:** All questions, options, and explanations must be in the same language as the source material.

**Output Format (use markdown exactly as shown):**

```
1. [Question text]
a) [Option A]
b) [Option B]
c) [Option C]
d) [Option D]
Answer: [Correct letter]
Explanation: [Brief explanation quoted directly from the material]
```

**Processing Rules:**

- **If the material contains existing questions/exams:** Extract all questions exactly as presented—do not generate new ones.
- **If the material is a book, slides, or notes:** Generate comprehensive questions covering all key concepts, definitions, facts, and any information likely to appear on exams.

**Important:** You must process the entire material thoroughly—extract or generate ALL possible questions without omitting any content.