Which of the following lists Piaget's four stages of cognitive development?

• A. Sensorimotor, Preoperational, Concrete Operational, Formal Operational
• B. Sensorimotor, Operational, Concrete Operational, Formal Operational
• C. Sensorimotor, Preoperational, Concrete, Postformal
• D. Sensorial, Preoperational, Concrete Operational, Formal Operational

Answer: (A)

Piaget's four stages of cognitive development and their standard names are being tested here. The progression starts with sensorimotor, where infants learn through actions and sensory experiences and develop object permanence. Next comes the preoperational stage, where children begin to use symbols and language but think intuitively and are often egocentric and struggle with conservation. Then the concrete operational stage, where thinking becomes more logical and organized about concrete events; children grasp conservation, reversibility, and perspective-taking. Finally, the formal operational stage, where abstract, hypothetical, and systematic reasoning emerges. Among the options, only the list that uses the established terms sensorimotor, preoperational, concrete operational, and formal operational matches Piaget's framework. The other options use inaccurate terminology like “operational” by itself, “postformal,” or “sensorial,” which do not correspond to Piaget's four stages.