问题

Ma Yun, head of Alibaba, is one of ________ persons in the world. — Yes. He is now even ______ than Li Jiacheng.
A:rich; rich
B:richer; richer
C:the richest; richer
D:richest; the richest;
B:richer; richer
C:the richest; richer
D:richest; the richest;
正确答案是: