Why was the Articles of Confederation discarded?

a. It failed to ensure states' sovereignty.

b. It was leading to a "mobocracy."

c. It failed to create a functional national government.

d. It lacked a Bill of Rights.

C. It failed to create a functional national government. This is because with the Articles, the national government could not tax, make major decisions without the consent of all the states, and it had no executive and judicial branch, so any laws made could not be enforced