Which stage of the general adaptation syndrome is the fight-or-flight response?

1. The general adaptation syndrome describes the body response to stress in three stages. 2. Stage one is the alarm reaction, the short-term fight-or-flight response. 3. It is mediated by epinephrine and norepinephrine from the adrenal medulla and prepares the body for extreme exertion. 4. Stage two is the stage of resistance, in which the body adapts if the stress persists. 5. Stage three is the stage of exhaustion, mediated by adrenal cortex hormones and marked by depression, immune suppression and severe fatigue. _Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 17 "The Endocrine System", section 17.6 The Adrenal Glands_