A presenter feels their heart racing and hands beginning to tremble moments before being introduced. Which of the following is the most effective immediate technique to calm these physiological symptoms?
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A
Take several slow, deep diaphragmatic breaths.
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B
Quickly review the first slide of the presentation.
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C
Silently repeat a positive affirmation like 'I will do great.'
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D
Take a large sip of a caffeinated energy drink.