Question

Which describes an achievement of Emperor Yangdi that helped unite China?

A.
He designed a plan for a series of interconnecting canals.

B.
He built the Great Wall of China to keep out invading Mongol hordes.

C.
He introduced terraced farming to produce more food.

D.
He made Marco Polo an honored guest at the imperial court in Beijing.

Answer 1

@paki

Answer 2

@paki

Answer 3

it's option A...