Sympathetic nervous system is stimulated by the hormoneAcetylcholineDopamineAdrenalineAll of the above (2024)

• The sympathetic nervous system (SNS) is part of the autonomic nervous system (ANS), which also includes the parasympathetic nervous system (PNS).
• The sympathetic nervous system releases hormone called adrenaline most often termed as the fight or flight response.
• Adrenaline, also known as epinephrine, is a hormone, neurotransmitter, and medication. Adrenaline is normally produced by both the adrenal glands and certain neurons. It plays an important role in the fight-or-flight response by increasing blood flow to muscles, the output of the heart, pupil dilation response, and blood sugar level. Hence, the Sympathetic nervous system is stimulated by the hormone Adrenaline.

So, the correct answer is 'Adrenaline'.