Answer:
The correct answer is: 3. Stress is a physiological and psychological response to a negative life event.
Step-by-step explanation:
Stress can be understood as a complex adaptative response to threats, either real, perceived or imagined. Stress prepares individuals for action, as it triggers a state called "Fight-or-Flight" in which the individuals are ready either to engage or escape a threatening situation.
Negative events usually trigger the stress response, which has both psychological and physiological components: A stressed person may become anxious, and somatically they can experience symptoms such as sweating, nausea, increased heart-rate, and so on.
In conclusion, the statement that is true is: 3 Stress is a physiological and psychological response to a negative life event.