How was the U.S. consitution different from the articles of confederation?

A The U.S. consitution set up the first form of government for the newly independent united states
B the U.S. consitution allowed for each state to have an equal vote in Congress regardless of size or population
C. the U.S. consitution departed powers between the judicial legislative, executive branches
D. the U.S. consitution had only one branch, a unicameral legislature that had limited power

C. the U.S. constitution departed powers between the judicial, legislative, and executive branches