Why were so many distinct cultures able to develop over time in Asia? Select two correct answers.
A.Mountains on the western end of the continent made it difficult for people to interact
B. The emperors were afraid of giving too much power to other outside civilizations.
C. Civilizations were isolated because Asian religions did not agree with western religions.
D. Asian cultures worked hard to keep other civilizations from entering their land
E. Deserts throughout Asia isolated communities in other areas suitable for settlement.