Which describe political achievements under the Ming dynasty in China?

Choose all answers that are correct. (there can be more than one answer)

A.
Ming emperors expanded China's borders to their greatest extent and conquered Japan and Korea.

B.
The first Ming emperor overthrew the hated Mongols.

C.
The dynasty sent out huge sailing expeditions to explore and trade.

D.
A civil service helped run the empire efficiently.

E.
A late Ming emperor rebuilt the old capital at Nanjing in the south.