Which statement correctly describes an accomplishment of Kublai Khan?
AHe completed construction of the Great Wall of China to repel Mongol invaders.
BHe improved the civil service system in China and ensured that jobs went to the most qualified people.
CAfter overthrowing the Song Dynasty, he moved the imperial capital from Beijing to Mongolia.
DUnder the Yuan dynasty, he granted religious freedom to the Chinese people.
AHe completed construction of the Great Wall of China to repel Mongol invaders.
BHe improved the civil service system in China and ensured that jobs went to the most qualified people.
CAfter overthrowing the Song Dynasty, he moved the imperial capital from Beijing to Mongolia.
DUnder the Yuan dynasty, he granted religious freedom to the Chinese people.