Final answer:
When preparing a speech introduction, it's best to create it after the body of the speech is done (option c), ensuring it is interesting and previews the main points, and to revise it several times for coherence and engagement.
Step-by-step explanation:
When preparing a speech introduction, it is advised to complete the introduction after the body of the speech is developed, hence the correct answer is Option C. This technique allows you to create an introduction that is coherent with the main content and supports the communication of your core message effectively. The introduction should capture the interest of your audience through a hook such as an interesting fact, a question, an anecdote, or occasionally humor, while also clearly presenting your topic and main ideas, including a thesis statement that previews the central theme. Importantly, you should revise your introduction multiple times to ensure it accurately reflects the nuanced claims and main points outlined in your speech, and to maintain the interest of your listeners.