Correct Answer: B

Rationale: Basic emotions like happiness, sadness, and anger are universal across humans, meaning they are experienced by people worldwide regardless of cultural differences. These emotions are not limited to a specific group of individuals or exclusive to humans; they are observed in various species. Choice A is incorrect because basic emotions actually appear early in life, not specifically in the middle of the second year. Choice C is incorrect as basic emotions are not exclusive to humans but are observed in other animals as well. Choice D is incorrect because basic emotions do not necessarily involve injury to our sense of self, but rather represent fundamental and instinctual feelings that are part of human nature.

Correct Answer: A

Rationale: Vygotsky viewed make-believe play as the ideal social context for fostering cognitive development in early childhood. Make-believe play encourages children to explore various roles and scenarios, promoting cognitive and social development. Sensorimotor play focuses on physical interactions with the environment, while block play involves building and construction activities. Parallel play refers to children playing alongside each other without direct interaction, which is not the type of play Vygotsky emphasized for cognitive development.

Correct Answer: B

Rationale: Corrected Rationale: Vygotsky believed that language plays a crucial role in the development of higher cognitive functions. Language enables individuals to communicate, think abstractly, and engage in complex problem-solving, forming the foundation for higher cognitive processes. Egocentrism (Choice A) refers to a stage in Piaget's theory of cognitive development, not Vygotsky's. Sensorimotor activity (Choice C) is part of Piaget's stages of cognitive development, focusing on how infants understand the world through sensory experiences and physical actions. Self-reflection (Choice D) involves introspection and examination of one's thoughts and feelings, which is not the central concept in Vygotsky's theory.

Correct Answer: A

Rationale: Physical activity is known to have a positive impact on mental health by reducing symptoms of anxiety and depression. Choice B is incorrect because physical activity generally improves both mood and alertness. Choice C is incorrect as physical activity tends to increase mood, alertness, and energy levels. Choice D is incorrect as physical activity actually increases neural activity in the cerebral cortex, which is associated with improved cognitive function and mental well-being.

Correct Answer: C

Rationale: By age 2, children are capable of adjusting their speech to fit the age of their listeners, showing early social cognition. Choice A is incorrect because taking turns in face-to-face interaction typically develops later in childhood. Choice B is incorrect as the ability to infer a speaker's indirectly expressed intention is a more advanced skill not typically seen at age 2. Choice D is also incorrect as children at age 2 are not developmentally ready to adjust their speech based on the social status of their listeners.