The correct option is option D. A location among Indian coast trade routes, this since Kilwa and Mombasa were commercial cities, they had access to a big and prosperous market. They arose along the East African coast.
They broke the agreement with Japan and as a result suffered many losses at their hands, sparking unrest.
Answer: B. were not completely unified
The earliest Chinese people did not have to worry about invasions from foreign countries because of their strong army and geography. The Chinese army present in ancient times were very strong and able to defend their lands. Chinese also build china wall in order to protect their lands from the invasion of other people. The geography of china also made difficult for the invaders to capture china.
