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: %20 عدد 500 برابر است با .... <sep> (A) 100 (B) 200 (C) 50 (D) 150
Student:
A