The nurse is studying the reports of two patients who show signs of depression. One patient (Patient A) is depressed because his pet dog has passed away, and the other patient (Patient B) is depressed at losing a spouse and material possessions in a natural disaster. What does this indicate about biological vulnerability and depression? 1 Patient A may respond better to the treatment provided. 2 Patient B may respond better to the treatment provided. 3 Patient A may be more vulnerable to developing severe depression. 4 Patient B may be more vulnerable to developing severe depression {Ans: 4 The reports indicate that Patient B has faced a worse situation than Patient A. According to the diathesis-stress model, the depression in Patient A is likely because of biological vulnerability and less due to the impact of the situation. Losing a pet is not a very traumatic event and not a cause of depression. Therefore, depression in Patient A is likely due to biological vulnerability triggered by the loss of a pet. On the other hand, Patient B suffers from depression mainly because of an environmental stressor; biological vulnerability has a limited role here. Based on the information provided, the