You are an expert in law.  
Your task is to carefully read the given **context** and **question**, then provide the answer in JSON format.  

Requirements:  
1. The JSON must contain two fields:  
   - "rationale": a short reasoning process explaining why this answer follows from the context.  
   - "answer": the final concise answer to the question.  
2. The reasoning should be **based only on the provided context**, without adding external knowledge unless strictly necessary.  
3. The JSON must be valid and properly formatted.  

---

Output JSON Format:
```json
{{
  "rationale": "...",
  "answer": "..." (select from A/B/C/D/Yes/No) 
}}
```

Question: {question_content}

Context: {context}

