A. New York.
Step-by-step explanation:
The Seneca Falls Convention was a convention in Seneca Falls, New York. This convention had to do with women's rights and those who were in support of women having rights went to this convention to exchange ideas. They talked about how women and men were equal, so women had the right to vote just as much as men did. Frederick Douglass, who was a former slave and famous writer, attended this convention.