Read the following passage: "Dr. Harmon arrived at the conference thirty minutes early, reviewed her notes twice, and positioned herself near the moderator's table. When the session began, she waited until three other panelists had spoken before offering her first comment."
Which inference is BEST supported by the passage?
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A
Dr. Harmon was nervous about public speaking and needed extra preparation time.
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B
Dr. Harmon strategically observed the discussion dynamics before entering the conversation.
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C
Dr. Harmon disagreed with the other panelists and was formulating a rebuttal.
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D
Dr. Harmon arrived early because she was responsible for organizing the conference.