Harry is driving on the interstate highway for the first time since he obtained his license. he is nervous and wants to get off the interstate but cannot do so; his heart and pulse are racing. in this scenario, harry's physiological responses can be best attributed to his nervous system. parasympathetic central sympathetic somatic

The correct answer is sympathetic nervous system.

In the given case, the harry is experiencing stress, which provokes the flight and fight syndrome. The sympathetic nervous system causes the release of  adrenaline and noradrenaline causing change in physiological responses. During the flight and fight response, a hyperarousal occurs, which leads to the change in physiological responses. It causes the increased heart beat, increased blood pressure, anxiety, increase in pulse, increased sweating etc.

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