Jean Piaget gave a theory of cognitive development of humans on the basis of his:
| A. | Evaluation Research |
| B. | Fundamental Research |
| C. | Applied Research |
| D. | Action Research |
Answer : B Explanation : |
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
