Respuesta :
Either textbook chapter or a speech depends what are you trying to find
The document that is most likely to be a primary source is a speech
What is a Primary Source?
This refers to first hand information about an event that is gotten from a person who witnessed it.
Hence, we can see that from the given choices, a speech is an example of a primary source because it has to do with talking to people about something and there is the first hand information about it.
Read more about primary sources here:
https://brainly.com/question/896456