Match the following.
| List-I | List-II |
| a. Formal operational | 1. 0-2 years |
| b. Sensory motor | 2. 2-7 years |
| c. Preoperational | 3. 7-12 years |
| d. Concrete operational | 4. 12-18 years |
A. a-4, b-1, c-2, d-3
B. a-3, b-2, c-4, d-1
C. a-4, b-2, c-1, d-3
D. a-3, b-4, c-1, d-2
Answer: Option A
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