Correct Answer: B

Rationale: The correct answer is B. Socioeconomic factors like income and education levels are key determinants of mental health. They influence access to resources such as healthcare, housing, and social support systems, which can impact an individual's mental well-being. Additionally, socioeconomic factors can contribute to stress levels and overall quality of life, which in turn affect mental health. Choice A is incorrect because socioeconomic factors do play a significant role in mental health outcomes. Choice C is incorrect as socioeconomic factors have a broad impact on mental health beyond extreme cases. Choice D is also incorrect as numerous studies have shown the clear impact of socioeconomic factors on mental health.

Correct Answer: B

Rationale: According to Freud's theory of psychosexual development, if a person does not resolve a particular stage successfully, they become fixated at that stage. This fixation can lead to behavior patterns characteristic of that stage in later life. In this context, 'defended' is incorrect because it does not align with Freud's theory of fixation. 'Repressed' is not the correct choice as it refers to the unconscious suppression of thoughts or desires. 'Displaced' involves redirecting emotions from their original source to a substitute target, which is not the concept Freud associated with unresolved psychosexual stages.

Correct Answer: D

Rationale: The biopsychosocial perspective is the correct answer as it considers biological, sociological, and psychological factors associated with a person's behaviors. This perspective emphasizes the interconnection between these factors in understanding human behavior. Choice A, Behavioral perspective, focuses primarily on observable behaviors and how they are influenced by the environment. Choice B, Cognitive-behavioral perspective, combines elements of cognitive and behavioral theories to understand behavior but does not encompass sociological factors. Choice C, Psychodynamic perspective, emphasizes unconscious processes and early childhood experiences as determinants of behavior, neglecting the sociological aspect.

Correct Answer: C

Rationale: The correct answer is C: 'Undercontrolled behavior tends to be seen in American children, whereas overcontrolled behavior is seen in Thai children.' This statement is supported by cultural studies and observations. American children are often described as exhibiting undercontrolled behavior, which includes impulsivity and lack of inhibition. On the other hand, Thai children are often described as showing overcontrolled behavior, characterized by restraint and adherence to social norms. Choice A is incorrect because calm behavior is not typically associated with American children. Choice B is incorrect as overcontrolled behavior is not commonly associated with American children. Choice D is incorrect as there are observed differences in behavioral traits between American and Thai children.

Correct Answer: B

Rationale: The correct answer is B: 'less cortical gray matter than those raised by their parents.' Studies have shown that children raised in orphanages tend to have less cortical gray matter compared to those raised by their parents. This is due to the lack of individualized care, attention, and stimulation that can negatively impact brain development. Choices A, C, and D are incorrect because there is no direct correlation between cortical gray matter and the number of friendships when comparing children raised in orphanages and those raised by their parents.