John approaches problems systematically,considering various solutions and the consequences of each,before he decides on the implementation of any one solution.Which level of cognitive development is John probably at

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John's ability to consider various solutions and their consequences suggests that he is capable of abstract thinking and hypothetical reasoning, which are indicative of the formal operational stage of cognitive development proposed by Piaget. The concrete operational stage (A) is characterized by the ability to reason logically about concrete objects and events, while the postoperational stage (B) refers to the transitional period between concrete and formal operational thinking. The preoperational stage (D) is characterized by egocentrism and a lack of understanding of the perspective of others, which is not consistent with John's systematic approach to problem-solving.

John Approaches Problems Systematically,considering Various Solutions and the Consequences of Each,before