Question

I WILL GIVE MEDALS

Which statement accurately describes an accomplishment of Emperor Yangdi that helped bring the Chinese together as one people?

A.
He brought a patchwork of small kingdoms under one rule by rebuilding the army.

B.
He convinced Marco Polo to share the technology of Western Europe with all regions of China.

C.
He helped spread Buddhism throughout Mongolia and Southeast Asia.

D.
He built a vast network of canals for trade and communication, known as the Grand Canal.

Answer 1

I think it is D

Answer 2

i think not D

Answer 3

Then what is the right answer?