Which of the following is not a feature of a democratic system of government?

The feature that is not part of a democratic system of government is "limited franchise." A limited franchise is a system of voting where only a certain group of people are allowed to vote, such as a particular race, gender, or social class. In a democratic system of government, the right to vote is extended to all eligible citizens, regardless of their race, gender, or social class. Therefore, limited franchise goes against the principle of universal suffrage, which is a fundamental tenet of a democratic system of government. The other options, official opposition, periodic elections, and rule of law are essential features of a democratic system of government.