The answer to the question is "Alienation of any North Dakota fans in his audience".
Rhetorical awareness simply explains that the speaker should understand that the needs of the audience or the reader should be met when communicating with them and this will determine if the communication is a success or failure.
Based on the information given in the question, rhetorical awareness can help David identify the alienation of any North Dakota fans in his audience.
Therefore, the correct option is C.
You can read more on communication here:
https://brainly.com/question/17531590