Answer:
I believe the correct answers to the question: Which steps could (Isabelle) take to deliver an effective presentation, as she performs her job as school´s body president, would be:
1. She could present the material in an organized way. This is because in that way, all her points will be said, and she will maximize her time, and minimize the possible loss of attention.
2. She could play a short music video of student volunteers. This would emphasize the importance of her point, and it would move peoples´ emotions, as well as make the presentation less about herself, than about the issue.
4. She could ask the audience to vote on ways they´d like to volunteer. Because this encourages participation. Again, another way to de-centralize the focus on herself, and more on the point.
5. She could pause frequently to ensure the audience gets her points. This allows an audience to feel less pressured, less like they are watching an ad, and gives them time to internalize the message.
6. She could practice giving her speech to her family several times. This ensures that things that need to be perfected can be before she makes the presentation to her real targeted audience.