Given the task definition, example input & output, solve the new input case.
In this task, you will be presented with a multiple-choice question in Persian, and you should answer the question based on your knowledge. Classify the answers based on options.
Example: نسبت .... به باران ، مثل دلتنگی است به .........؟ <sep> (A) ابر ، آسمان (B) ابر ، گریه (C) برف ، غصه (D) زمستان ، گریه
Output: B
This is a good example, and the answer is correct.

New input case for you: در مینیاتور ، استفاده از خطوط نازک و ضخیم را ...... می گویند. <sep> (A) پرداز (B) سایه روشن (C) حجم (D) قلم گیری
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
D