A working group plans to conduct field research and initially determine that only one region in eastern, western or northern Guangdong will be selected. In this regard, three people in the working group A, B, C put forward the following opinions: A: eastern Guangdong is more representative in this survey and should go to eastern Guangdong. B: I have already been to northern Guangdong in the last round of research, so we should choose other regions this time. C: I think it is more appropriate to choose western or northern Guangdong to conduct field research.
The working group adopted opinion of C is correct.