They feared that a central government would become tyrannical
The Articles of Confederation did not create a strong central government. As a result, the federal government could not negotiate foreign treaties without agreement from the states, and contained no provision for federal courts. The national government under the Articles of Confederation was simply too weak as it also lacked taxation powers
I think it is Many Blacks and Native Americans supported them.
C? I believe so. :) have a nice day, dear.