Brooke had been battling the rising floodwaters around her home for more than 72 hours. It seemed that no matter how many sandbags she stacked, it wasn't enough. At this point, she just feels that there is nothing else that she can do. Her overall energy reserves are totally depleted, and her body just wants to give up. What is Brooke experiencing according to Selye's general adaptation syndrome?
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an alarm reaction◦
physiological exhaustion◦
a resistance reaction◦
autonomic rebound