A 4-year-old child is shown two identical short, wide glasses with the same amount of water. The water from one glass is then poured into a tall, thin glass. When asked which glass has more water, the child points to the tall, thin glass. According to Piaget's theory, this child's response is characteristic of a failure to understand:
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A
Object permanence
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B
Egocentrism
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C
Conservation
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D
Symbolic thought