Final answer:
Sojourner Truth's use of informal diction creates vulnerability in her argument.
Step-by-step explanation:
The diction used by Sojourner Truth in her speech 'Ain't I a Woman?' affects the way her argument is presented to the audience by creating vulnerability. She uses informal diction to convey her personal experiences and emotions, making herself relatable and emphasizing the injustices she has faced as a woman and a slave. This informal language helps the audience connect with her on an emotional level and adds power to her argument.
Learn more about Sojourner Truth's use of diction in her argument