Which is the greatest accomplishment of the Ming Dynasty?

#1 Majority of the existing Great Wall of China was built in the Ming era.

#2 Seven epic voyages were led by the great Chinese admiral Zheng He.

#3 Ming period saw great development in printing.

#4 The most comprehensive book on traditional Chinese medicine was written

Explanation:

they bring people together to achieve control of the government

basically choosinng what sets in   congress and presdicny this is to keepthe antion hole and so it can last because wiht out authority it wouldnt last a week