Of the design features listed below, which were a design feature of the original constitution and not a design feature of the articles of confederation? (select all that apply)
a. an upper legislative chamber based on the principle of equal state representation and lower legislative chamber based on the principle of proportional representation.
b. all officials in the central government tightly controlled by the state governments.
c. three distinct and separate (legislative, executive, and judicial) branches of government.
d. democratic control by the people over the central government.
e. heavy emphasis on maximizing the authority and power of the