The correct answer is D. Select a topic
Step-by-step explanation:
When you are asked to write a persuasive essay, you should write a text in which you prove and explain your position about a specific topic or issue. In this context, the first step is to choose the topic or issue you want to write about, then define your position and write it in a thesis statement, research and find evidence to support this position, create an outline and finally start with the writing process. This means the first step, in this case, is to select a topic because without this other steps such as from a thesis statement, research or write the essay is not possible. Indeed, a topic will help you to limit the focus of your essay.