Why were the european villages isolated

The roads were not well and they were dangerous so people didn't travel to other villages or back because of this. Hope this helped! (:

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.

1 wagon is the right answer