How does the slavery grievance describe slavery? who does jefferson blame for the continuation of the slave trade?

The declaration of independence included a list of grievances. In one of this, Thomas Jefferson wrote about the abomination that was slavery and condemned it. The Grievance describes slavery as disgraceful, miserable, and as a part of the most disgusting business.

In the Grievance, Jefferson also blames slavery upon King George III.  He blames the King for introducing slavery into the Americas. Jefferson wrote: "Those disgraceful practices are the Warfare of the Christian King of Great Britain".

the answer is a) the proclamation of 1763.

the answer should be a. the sui empire, the tang empire extended from korea in the west to manchuria in the east.