Correct Answer: B

Rationale: Dr. Smythe's belief that understanding the purpose of taste in survival is more critical than focusing on the elementary components aligns with the functionalist approach to psychology. Functionalism emphasizes understanding the purpose or function of mental processes and behavior, rather than just analyzing their individual components. This approach looks at how mental processes help individuals adapt to their environment and survive. Therefore, choices A, C, and D are incorrect because they do not prioritize understanding the purpose of mental processes and behavior in the context of survival.

Correct Answer: B

Rationale: Selective mutism can coexist with social anxiety disorder. The correct answer is B because it is incorrect to say that selective mutism cannot be diagnosed alongside social anxiety disorder. Statement A is true as selective mutism is often associated with high social anxiety. Statement C is true as individuals with selective mutism can speak in some situations. Statement D is true as selective mutism may lead to academic impairment due to difficulties in communication.

Correct Answer: C

Rationale: The correct answer is C: Secondary circular reactions. Secondary circular reactions are repeated actions that infants engage in to trigger a response from the environment, such as the baby cooing to make the mom smile. This behavior is characterized by a focus on the external environment and the repetition of actions to achieve a desired response. Choices A, B, and D are incorrect. Reflexes (choice A) are automatic, involuntary responses to a stimulus, while primary circular reactions (choice B) involve the repetition of actions primarily for the infant's own enjoyment rather than to elicit a response from the environment. Tertiary circular reactions (choice D) refer to the experimentation with new behaviors and variations in the way the infant interacts with the environment.

Correct Answer: A

Rationale: Teratogens are substances that can cause birth defects, especially if exposure occurs during critical periods of development. In this context, teratogens refer to external agents that can interfere with the development of the embryo or fetus, leading to structural or functional abnormalities. Choice B, Placenta, is incorrect as it is an organ that develops during pregnancy to provide nutrients and oxygen to the fetus and remove waste products. Choice C, Parturition, refers to the process of giving birth and is not related to substances that cause birth defects. Choice D, Androgens, are male sex hormones and are not associated with causing birth defects.

Correct Answer: A

Rationale: The correct answer is A: Qualitative change. Qualitative change aligns with the discontinuity view by involving changes in type or kind. This contrasts with quantitative change (B), which is about changes in amount or quantity. Maturation (C) refers to the process of becoming fully developed in a particular way, and multidirectional development (D) emphasizes that development involves both gains and losses, not specifically focusing on changes in type or kind.