Final answer:
The sympathetic nervous system produces the physiological changes you experience when feeling anxious about a date, which includes an accelerated heart rate and inhibited digestion, as part of the fight-or-flight response.
Step-by-step explanation:
When you are getting ready for a date and suddenly feel sick to your stomach and your heart starts pounding, you are experiencing an autonomic response connected to emotional stress. This response is characterized by physiological changes in your body that prepare you to handle stress or perceived threats, known as the fight-or-flight response. The correct answer to the question is a) Sympathetic nervous system.
The sympathetic nervous system is responsible for these reactions, such as an accelerated heart rate and inhibited digestion. This system readies your body to either face a challenge or escape from it. It contrasts with the parasympathetic nervous system, which promotes relaxation and digestion once a stressor has passed.