The part of the plan that will detract from the writer’s purpose given the intended audience is: Narrow the focus of the presentation to one side of the education debate, because most attendees will already agree with the main point of view.
This approach could limit the effectiveness of the argument by not fully addressing the nuances of the debate. A successful presentation at a professional conference should consider multiple perspectives and counterarguments to engage the audience effectively, fostering a more comprehensive discussion about the educational requirements in the aerospace engineering field.