Thinking in terms of a situation’s current state and not having the ability to mentally reverse actions are limitations of the __________ stage.

The preoperational stage is marked by thinking that focuses on how things look in their current state and difficulty mentally reversing an action. For example, a child may think a reshaped lump of clay has more clay because it looks different, and may not mentally reverse the reshaping. So the correct choice is D, preoperational.

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