Which of these belongs in the empty cell?
A Congress that is chosen according to the number of people in each state
A House and Senate, one representing all states equally, and one representing based on population
An Electoral College, to decide the president, based on the number of electoral votes
An Electoral College, to make and enforce the U.S. Constitution among the states received

Question

Which of these belongs in the empty cell?
 A Congress that is chosen according to the number of people in each state
 A House and Senate, one representing all states equally, and one representing based on population
 An Electoral College, to decide the president, based on the number of electoral votes
 An Electoral College, to make and enforce the U.S. Constitution among the states received