Detailed Instructions: In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
Q: Question: When the organism passes successively through the phases of alarm reaction, resistance phase and exhaustion phase, we refer to:
Options: <0> The autonomous nervous system. <1> The placebo effect. <2> Electrokinesiological biofeedback. <3> Restrictive anorexia nervosa. <4> The general adaptation syndrome.
A:
psychology