What was the most important factor that created changes in the minoan civilization

They had natural resources to forge the bronze objects they made for trading was the most important factor that created changes in the Minoan civilization, to be specific it was tin  

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.