Correct Answer: A

Rationale: Genetics play a significant role in the development of behavioral disorders. While upbringing, diet, and environment can also influence behavior, genetics are often the primary factor in determining behavioral disorders. Choice B (upbringing) can contribute to behavior but is not the sole determinant of behavioral disorders. Choice C (diet) can impact behavior but is not the primary factor in behavioral disorders. Choice D (environment) can also influence behavior, but genetics typically play a more significant role in determining behavioral disorders.

Correct Answer: A

Rationale: The biopsychosocial model is a comprehensive approach that considers biological, psychological, and social factors in understanding mental disorders. Choice A is correct because it accurately describes how this model integrates these three factors. Choice B is incorrect as it excludes social influences from the model. Choice C is incorrect because it states that the model only emphasizes psychological factors, which is not true. Choice D is incorrect as it suggests that the model is purely biological, which is also inaccurate.

Correct Answer: D

Rationale: Infant characteristics can indeed influence the quality of attachment relationships. Parents often respond to their infants based on their characteristics, temperament, and needs. This interaction shapes the attachment bond between the parent and the child. Choices A, B, and C are incorrect because infant characteristics do have an impact on parental behavior and are influenced by various factors, including biological ones.

Correct Answer: A

Rationale: Freud believed that anxiety was a primary causal factor in the development of most forms of psychopathology. Anxiety, according to Freud, arises from conflicts within the mind, particularly conflicts between the id, ego, and superego. This unresolved conflict can lead to various psychological issues. While depression can be a symptom of psychopathology, Freud emphasized anxiety as a more foundational element. Unresolved conflicts between the ego and the superego are related to Freud's structural model of the mind but are not the primary causal factor in psychopathology. Fixation in the oral stage is a concept from Freud's psychosexual stages of development and is not directly linked to the causal role in the development of most forms of psychopathology.

Correct Answer: B

Rationale: When examining heredity, mental disorders are influenced by multiple genes. Mental disorders are complex conditions that typically result from a combination of genetic, environmental, and other factors. While genetics play a significant role in predisposing individuals to mental disorders, it is rare for a single gene to be solely responsible for a mental disorder. Therefore, choice B is correct. Choices A, C, and D are incorrect because mental disorders are not usually influenced by one particular gene, recessive genes specifically, or not influenced by genes at all.