Detailed Instructions: 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.
Problem:پهناور ترین کشور دنیا کدام است؟ <sep> (A) آمریکا (B) چین (C) روسیه (D) استرالیا
Solution:
C