The purpose of an author of argumentative essays is to persuade.
The correct answer is "to persuade." To determine the purpose of an author of argumentative essays, you can analyze the content and structure of their work. Argumentative essays are written with the intention of convincing or persuading the reader to adopt a particular viewpoint or take a specific action. The author presents strong arguments and supporting evidence to support their position and counter opposing viewpoints. Therefore, the main purpose of an author of argumentative essays is to persuade the reader.