During a civics lesson, fifth-grade students are learning about ways in which electoral politics have changed in the United States since 1950. Which of the following topics should appear in the lesson?

While the extension of voting rights to women is a significant historical milestone, it primarily occurred earlier in the 20th century, culminating in the 19th Amendment ratified in 1920. Although it is an important aspect of voting rights history, it does not specifically reflect the changes in electoral politics since 1950.

The removal of land ownership requirements was part of earlier reforms in the 19th and early 20th centuries that expanded voting access to more individuals, particularly in the aftermath of the Civil War. This change predates 1950 and is less relevant when discussing the evolution of electoral politics in the latter half of the 20th century.

The direct election of U.S. senators was established by the 17th Amendment in 1913, long before 1950. While this change was significant, it does not represent the recent developments in electoral politics that have emerged with modern media's influence on elections.