Correct Answer: D

Rationale: Biological discoveries have indeed led to a recognition of the role that genetic factors and other biological influences play in the development of many disorders. This understanding has shifted the focus from purely environmental explanations to acknowledging the significant impact of genetics and biology on mental health. Choices A, B, and C are incorrect because biological discoveries have not specifically addressed the subjectivity of definitions of abnormality, minimized the role of the environment in psychopathology, or definitively classified mental disorders as diseases that should only be handled by the medical profession.

Correct Answer: D

Rationale: The humanistic perspective, as highlighted by proponents like Carl Rogers and Abraham Maslow, emphasizes the inherent drive of individuals to achieve self-actualization and positive self-growth. It focuses on the individual's potential for growth, self-improvement, and fulfilling their highest capabilities. Choice A is incorrect as the humanistic perspective is more concerned with personal growth than with addressing the fear of death. Choice B is associated with the psychodynamic perspective, which focuses on unconscious motives. Choice C is related to cognitive-behavioral approaches that emphasize the rational understanding of behavior.

Correct Answer: B

Rationale: Stress can lead to changes in brain structure and function, affecting mental health and increasing the risk of disorders. Choice A is incorrect as stress does affect brain function. Choice C is incorrect as stress generally has negative impacts on brain function rather than improving it. Choice D is incorrect because stress can have long-term impacts on brain function through structural and functional changes.

Correct Answer: C

Rationale: Understanding the causes of mental disorders is crucial because it can potentially lead to both prevention and cure. By identifying the root causes, strategies can be developed to prevent the onset of disorders, and effective treatments can be tailored to address these causes directly. This approach can make treatments more efficient, as addressing the underlying factors contributing to the disorder can result in better outcomes for individuals. Choices A and B are incorrect because while understanding causes is important for effective treatment and classification, the primary focus is on prevention and cure. Choice D, while highlighting the impact of disagreements on advancements in abnormal psychology, does not directly address the importance of understanding causes for prevention and cure.

Correct Answer: B

Rationale: Culture is essential in shaping our perceptions and definitions of abnormal behavior. Choice A is incorrect because culture actually plays a significant role in understanding abnormal behavior. Choice C is incorrect as culture can have a considerable impact on how abnormal behavior is expressed. Choice D is incorrect because culture influences not only the treatment but also the understanding of abnormal behavior.