please help..........................

Which of the following statements accurately exemplifies the United States federal government’s system of “checks and balances” as it is described in the passage?
A. The president can veto a bill passed by Congress.
B. Congress is made up of two separate groups of elected officials from each of the 50 states.
C. Bills must pass through both the Senate and the House of Representatives before they are submitted to the president.
D. Decisions by federal judges can be appealed, and cases can be tried again in a higher court.