The feature of the chambers of Congress that is missing is A. (1) Representation based on state populations; (2) All states have equal representation.
<h3>How is Congress elected?</h3>
The House of Representatives has the same number of members per state, as the electoral votes which are given based on population.
Senate on the other hand, has equal representation per state with each state having 2 senators.
Find out more on the chambers of Congress at brainly.com/question/10414890.
#SPJ1