The expansion of imperialists was assisted by missionaries that were sent ahead of colonizers to spread Christianity, the religion of the Empire. In doing so, they also spread Western ideals and the English language. The path made by religious scouts made imperialism, easier.
I think B is the appropriate answer among the others. Hope this helps :)
I think the Chinese were the most important and the Koreans were not as important.
It was <span>missionaries, traders, fur trappers</span>
