10. In the period 600 C. E. to 1450 C. E., merchant diaspora communities, such as those of Muslims in India, Chinese in Southeast Asia, and Jews in the Mediterranean, had which of the following in common? *

They generally lost touch with their homelands and merged with the local population.
They generally imposed their own languages on the local communities
They generally became military outposts that facilitated the expansion of empires.
They generally introduced their own cultural practices into the local cultures