Final answer:
The biosocial theory of psychopathology in Dialectical Behavior Therapy (DBT) emphasizes the interaction between biological vulnerabilities and environmental factors.
Step-by-step explanation:
The correct answer is d) A theory emphasizing the interaction between biological vulnerabilities and environmental factors in emotional dysregulation and behavioral difficulties. The biosocial theory of psychopathology in Dialectical Behavior Therapy (DBT) proposes that biological vulnerabilities, such as genetic predispositions, interact with environmental factors, such as traumatic experiences or invalidating environments, to result in emotional dysregulation and behavioral difficulties.