Which of the following is the method of selecting a speech topic that involves beginning with a broad subject and then drawing connections between associated topics using circles and lines?

The method of selecting a speech topic that involves beginning with a broad subject and then drawing connections between associated topics using circles and lines is known as clustering. This technique allows speakers to visually map out their ideas, starting from a central concept and branching out to related themes and ideas, represented by circles and connecting lines. This visual representation helps in organizing thoughts and discovering relationships among various subtopics, ultimately leading to a clearer path for developing the speech. Clustering is particularly useful for generating ideas and exploring the depth of a topic, thus making it easier to narrow down to a specific and focused subject for the speech.