What is the primary advantage of having a clear purpose in a speech?

Having a clear purpose in a speech is crucial because it helps guide the content and structure of the presentation. When a speaker has a well-defined purpose, it serves as a foundation upon which they can build their message. This clarity allows the speaker to select relevant points, organize their thoughts coherently, and ensure that the audience understands the main idea. A clear purpose also aids in maintaining focus throughout the speech, which ultimately leads to more effective communication and engagement with the audience.

In contrast, options such as making the speech longer or ensuring the audience stays awake don't directly relate to the effectiveness of communication. While strategies to extend speech length or maintain audience interest may be important, they are not the core benefits of having a clear purpose. Similarly, while improvisation can be a valuable skill, it typically works best within the framework of a defined objective, making it less about the advantage of having that clear purpose. Overall, the primary advantage lies in the strategic guidance that a clear purpose provides, which is essential for delivering a compelling and organized message.