The main purpose of the following sentence is to persuade. What is its specific purpose? Shaquille Johnson is an outstanding man of character, and I believe he would be a valuable addition to any company.
A.) to prove someone’s date of birth
B.) to recommend someone for a job
C.) to improve the company’s hiring system
D.) to organize a conference

The word persuasion refers to the process of influencing the beliefs, and motivations of people usually by convincing someone of believing a certain idea or doing something. Additionally, in writing persuasion is achieved by providing reasons or details that explain the reader or audience why the idea of the author should be believed. Considering persuasion focuses on influencing in different ways the audience or reader it can use for multiple specific purposes related to politics, environment, society, culture, among others.

In the case presented the author first describes one positive features of Shaquille Johnson using words "outstanding man of character" and then adds he or she believes because this Shaquille Johnson would be "valuable addition to any company", which shows the author of this text aims at showing the reader the reasons why Shaquille Johson is an ideal worker for the company and therefore should be hired. This means the specific purpose of this text is to recommend someone (Shaquille Johnson) for a job.