1) would be C Judicial power
It was done for the protection of the community
I am not entirely sure about this one. But I believe that the "Emancipation Manifesto" signed by Czar Alexander II gave serfs land, or at least gave them the freedom to do what they wanted, like buying that said land.
No freedom of religion, or elections was yet to be had in Russia.
Answer:
It is important for the different states to come together and form a united country because without a united front internal conflict can break out creating problems involving the national government, foreign allies, and the military. Its best to keep this united front between states so that the country and its people are kept safe.
I hope this helped (: