What is the central idea of this passage?

Question

Responses
A America no longer needs an Electoral College system.America no longer needs an Electoral College system.
B Voters must take seriously the responsibility to vote.Voters must take seriously the responsibility to vote.
C College graduates agree with the Electoral College system.College graduates agree with the Electoral College system.
D American presidents are in support of the Electoral College system.

Answer 1

B Voters must take seriously the responsibility to vote.