Step 1: Concept
Jean Piaget proposed a theory of cognitive development describing how children develop from infancy to adolescence through four distinct stages.
Step 2: Meaning
The sensorimotor stage (0–2 years) involves learning through actions and sensory experiences. The preoperational stage (2–7 years) involves symbolic thinking. The concrete operational stage (7–11 years) develops logical thought. The formal operational stage (adolescence onwards) involves abstract and hypothetical thinking.
Step 3: Analysis
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• C) Sensory-motor stage — first stage (0–2 years), learning through senses and motor actions.
• A) Preoperational stage — second stage (2–7 years), symbolic thinking but lacks logical reasoning.
• D) Concrete operational stage — third stage (7–11 years), logical thought based on concrete events.
• B) Formal operational stage — fourth stage (adolescence+), abstract and hypothetical thinking.
This sequence corresponds to option B: C - A - D - B.
Step 4: Conclusion
The correct sequence of Piaget's stages is C (Sensory-motor), A (Preoperational), D (Concrete operational), B (Formal operational).
Final Answer: (B)