The historical impact of the Nineteenth Amendment is primarily related to the expansion of women's suffrage in the United States, granting women the right to vote. Therefore, while none of the provided responses directly address the Nineteenth Amendment's effect on women's rights, the most relevant option would be the broadening of voting rights, even though the offered choices pertain more to issues affecting minority suffrage and electoral reforms that followed later.
If you had to choose the closest answer, it would be none of the exact options provided. However, an answer focusing on the consequences of the Nineteenth Amendment would involve the broader movement towards equal voting rights, influencing future reforms such as the Voting Rights Act. Since that is not an option here, please let me know if you would like further clarification or assistance!