Answer:
D) barrier-free participation in government is needed for a democracy to work effectively.
Step-by-step explanation:
Under the system of Democracy, people have the right to actively participate in politics and civic life and to choose and replace government through free elections. In the United States, all citizens, regardless of their condition, race, origin, appearance or ideals, exercise that right through the free elections of their representatives. And this principle of equality is considered to be a centerpiece of their democracy because barrier-free participation in government is necessary so that a true democracy exist.