Answer:
Option B. Sojourner Truth delivered her speech at a women's rights convention.
Explanation:
Sojourner Truth, an African-American activist that was born into slavery, gave her most famous speech called "Ain't I a woman" at a Women's Rights Convention in Akron, Ohio in 1851. While there is not an actual record of the speech, France Gage who was the President of the convention recounted Sojourner's words in the "National Anti-Slavery Standard" that was a weekly newspaper.
