Answer:
Sojourner Truth was born into slavery, underwent a conversion experience, and became a speaker for various reform causes.
Explanation:
This would be the main idea in a speech that contains these points. The main idea or central idea of a text refers to a statement that includes the most important points and arguments made in a text. This is usually expressed in a single sentence, which summarizes the most important parts of the passage. In this case, the three most important points are included in a sentence that is cohesive and logical.