What was the political result of the Vietnamese drive to conquer regions south of the Red River basin?
a. Vietnamese domination of the South Pacific and the Philippines
b. The defeat of the Vietnamese and the fragmentation of the kingdom into 300 small kingdoms ruled by a warrior elite
c. The creation of a highly centralized kingdom with its capital at Hanoi
d. The reconquest of the Red River valley by the Chinese during the Southern Song era
e. The division of the Vietnamese into two kingdoms with capitals at Hue and Hanoi
Answer: E