"Today, I'd like to share with you the top three islands to visit in Hawaii. First, we'll start off on the Big Island. Then, we'll move on to Maui. We'll end our tour on the island of Oahu." This is an example of which of the following?
A. an opening statement
B. a thesis
C. a preview
D. a purpose

A preview

Explanation: a preview is usually your main point or a summary of the whole thing to be done in just a few lines. It is like actually seeing something before their unveiling. A preview statement makes the audience or listeners to know the main focus point of what they are doing or a research. It is done so that the audience can pay a vivid attention or focus to it when the time comes and also help them to recognize the important point. It usually varies most times. It usually lead the listeners to the body of the speech that

fulfill or quarantee the speaker expectations that was formulated.