Answer:
The diathesis-stress model
Explanation:
The diathesis-stress model is a model that describes the vulnerabilities and the predisposition of a certain type of medical condition that considers the physical as a well psychological condition.
The diathesis model was first used in schizophrenia terminology. It is later on used in depression.
It can be a biological inheritance as well as psychological vulnerabilities such as environmental influence.
This model is also called a stress vulnerability model that describes the interaction between the predisposition of genetic and environmental factors caused a disorder.
Thus, Stacy, smother case is a good example of the Diathesis stress model.