Answer:
1. Biased-pro
2. Neutral
3. Biased-pro
4. Biased-con
Explanation: I just did it and got them all right
The awnser is becasue the nations were united
The treaty of Versailles was an unfair treaty because they blamed everything on Germany and restricted its capabilities as a country and they had to pay for the war to the other states/counties
I think it is
c) Many cities have developed along it.