The correct answer is C. Develop transitions and the conclusion.
Step-by-step explanation:
In speeches, an outline is a strategy used to organize the contents that the speaker wants to include. Outlines are part of tasks developed to prepare a speech and imply organizing the content of the speech according to the main points and the sub-ideas or evidence in each of them.
Due to this, speakers usually write first the main idea or thesis statement, then include ideas for the introduction, after they add the main supporting ideas, then sub-points and specific details based on short but clear statements and finally include ideas for the conclusion as well as transitions that make all the statement be connected and create a complete guide for the speech. Therefore, the last step in a speech outline is usually to develop transitions and conclusions.