The correct answer is C. To make a final bid for support by restating the central point of the argument
Step-by-step explanation:
An argument refers to one or more reasons or evidence such as facts, statistics, examples or experts' words provided in order to support a position or point. Because of this, arguments are usually composed of the main claim or position the author or speaker wants to defend and prove, the evidence the author provides to defend the position and a final statement that serves a conclusion. In the case of the conclusion, the main purpose of it is to summarize the reasons or evidence provide, restate the main point or position and in this way make a final attempt to persuade the audience or bid them believe and support the author. Therefore, the purpose of the conclusion of an argument is to "make a final bid for support by restating the central point of the argument".