The main purpose of the expository writing is to inform and educate about some specific topic, the text wants to deliver information for the reader, to serve this purpose the writer includes all the details in a organize and clear manner. Following this description, we can say that expository writing has clarity, coherence, thoroughness, and persuasiveness. The option that is not a general characteristic of expository writing is poetic description.
Expository writing intends to explain and instruct the audience about a particular topic. It offers a clear and comprehensive explanation by offering reasonable discussion and evidence that compliments the idea which is being presented or explained. As per this description, the option that does not display a general characteristic of expository writing would be option C 'poetic description' as it has no affiliation to this writing style as mentioned above. The other options(clarity, coherence, thoroughness, and persuasiveness) are significant elements of expository writing as it aims to enlighten the audience and therefore, the discussion and explanation need to possess these features. Thus, <u>option C</u> is the correct answer.