Answer:
B. They history of the census
Explanation:
If there is social participation,people will be able to share each other’s problems so there will be socialization
The National Socialist German Worker's Party, or just Nazi for short, and the Union of Soviet Socialist Republics (USSR) or just Soviet Union for short, made a peace treaty.
On August 23, 1939, The Nazi Party and The Soviet Union made an agreement not to attack each other for the next ten years. Stalin used this just so he didn't have to worry about Germany when he was rebuilding the Soviet Army. Of course as you can imagine Adolf Hitler just used it so Russia couldn't do anything when the invaded Poland, September First 1939.
But he soon after broke the agreement by invading Russia on June 22, 1941. Commissioning Operation Barbarossa.
I can help with many others on this list of yours, any more I can help with?
I believe the answer is: watching animals interact at the zoo.
When we watch animals interact at the zoo, could easily a similar social structure just like what we see in human (especially if we observe primates)
In primates social structure, we could see that they possess a hierarchy where one alpha primate decide the course of action that taken by group, and would make protective attempt if the group is in danger. As a return, the alpha primate would obtain the most resource compared to the follower.