The Disruptive Forces That Produced a Shaky Start Toward Union

The disruptive forces that produced a shaky start toward union of the states immediately following the Revolutionary War included

A) the absence of the unifying element of a common cause.
B) an economic depression in the colonies.
C) the fact that each of the thirteen states had its own unique governmental structure.
D) the absence of any really effective political leaders.
E) slavery.