Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
نسبت .... به باران ، مثل دلتنگی است به .........؟ <sep> (A) ابر ، آسمان (B) ابر ، گریه (C) برف ، غصه (D) زمستان ، گریه
Solution: B
Reason: This is a good example, and the answer is correct.

Now, solve this instance: «پروتکل» ( ( Protocol یعنی : <sep> (A) معاهده (B) قرارداد بین‌المللی (C) مقاوله نامه (D) موافقت نامه
Student:
C