Final answer:
None of the provided options is an opinion as they present factual information.
Explanation:
An opinion is a statement that reflects a person's beliefs, feelings, or thoughts about a subject rather than facts. In the options provided:
- A. Jefferson Davis's driver was named William A. Jackson. - This is a factual statement.
- B. Harriet Tubman guided a secret river raid for the Union. - This is a factual statement.
- C. The first Black American spies had escaped enslavement. - This is a factual statement.
- D. The Union's smartest spy was Mary Elizabeth Bowser. - This is a factual statement.
Therefore, none of these options present an opinion; they all convey factual information.
Learn more about Understanding opinions and factual statements here:
https://brainly.com/question/18996988
