Answer:
Step-by-step explanation:
4: A speaker can use personal experience as supporting material in a speech by... You can use personal stories of yours no add some personal experience and supporting material. You can also ask people in the audience. You may also use information from personal experiences you also had.
Yes, the speaker should be cautious about their personal experiences.
This is because when adding personal experiences you have to think carefully about what you're going to add. This is because some experiences might be inappropriate, unhelpful, offensive, etc. So, yes make sure to be cautious.