The silk road split into a northern route and a southern route. what was one advantage of taking the northern route?

the answer is lower nubia. plz mark brainliest i am trying to improve rank.

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.