What was the goal of chinese expeditions in the early 1400s?

a colonization

b trade with north america

c diplomatic missions

d waging war

they did it for entertainment

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.