an author of argumentative essays writes for which purpose?

to persuade
to excite
to infer
to encourage

The primary purpose of an author of argumentative essays is to persuade.

The purpose of an author of argumentative essays is to persuade. Argumentative essays aim to present a logical and well-supported argument in order to convince the reader of a specific viewpoint or opinion.

An author of argumentative essays primarily writes for the purpose of persuading their audience. Persuasion is the act of convincing someone to adopt a particular point of view or take a specific course of action through the use of logical reasoning, evidence, and persuasive language.

To arrive at this answer, one can examine the characteristics and structure of argumentative essays. These essays typically present a specific claim or thesis statement and provide evidence and reasoning to support that claim. The author's goal is to persuade their readers to agree with their perspective and potentially take action based on their arguments.

While exciting, inferring, and encouraging can be elements within an argumentative essay, the primary purpose is persuasion. Excitement can be generated through engaging language and vivid examples, inference can be used to draw logical conclusions from the evidence provided, and encouragement may be used to motivate readers to take action based on the presented arguments. However, without the intent to persuade, an essay would not be considered argumentative in nature.