Final answer:
The general adaptation syndrome is a three-stage model that describes the body's physiological response to stress. The alarm reaction is the initial response to a perceived threat and is similar to the fight-or-flight response.
Correct option is a.
Step-by-step explanation:
The general adaptation syndrome, also known as GAS, is a three-stage model that describes the body's physiological response to stress. The stages include the alarm reaction, stage of resistance, and stage of exhaustion. The alarm reaction is the initial response to a perceived threat and is similar to the fight-or-flight response. During this stage, the body prepares itself to deal with the stressor.