Which of the following would violate the principles of piaget's theory?
- if identical twins reached the preoperational stage at different times
- if more intelligent children went through the stages faster than less intelligent children
- if a gifted child skipped the concrete operational stage and went directly to the formal operational stage
- if a child went through a revolutionary change of thought at 2 years of age

The options that violates the principles of Piaget's theory are

Explanation:

According to Piaget, all four stages must be successfully completed in order to attain full human intelligence. None of the stages can be skipped and the term "gifted" itself would violate Piaget's idea that intelligence must be gained over time due to biological maturation and interaction with the surroundings. All children will learn and develop as the stages pass.  Also, a child who is just two years old would have learned to understand and control only his sensorimotor functions. The thought process of a two year old child isn't developed enough to undergo a drastic revolution.

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d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer