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Answer:
B.
Explanation:
Knowing who is your audience is an important aspect of public speaking. Before writing a speech, the speaker needs to analyze and know to whom he/she is going to deliver the content.
The one characteristic that is not required to know about your target audience is their content knowledge. Content knowledge can be defined as a piece of knowledge related to the subject matter, facts, theories, concepts, etc. which are taught by educators, trainers, etc.
Therefore, option B is correct.