What does the 20th Constitutional Amendment address regarding presidential terms?

The 20th Amendment to the United States Constitution primarily addresses the timing of when presidential and congressional terms begin and end. Specifically, it establishes that the President and Vice President's terms commence on January 20th following the election. This amendment was ratified in 1933 and aimed to reduce the "lame duck" period, which is the time between the election and the inauguration of officials who have been defeated or are not seeking reelection. By setting a standard start date for the presidential term, the 20th Amendment ensures a timely transition of power and allows the newly elected president to take office in a more efficient manner.

In contrast, the other options speak to different historical contexts or constitutional amendments. Two-term limits are addressed in the 22nd Amendment, which restricts presidents to two terms. Women’s suffrage is covered by the 19th Amendment, granting women the right to vote. The voting age reduction is found in the 26th Amendment, which lowered the voting age to 18. Each of these amendments addresses distinct rights and procedures unrelated to the specific timing of presidential terms outlined in the 20th Amendment.