Answer:
reversibility.
Explanation:
Reversibility: The term reversibility is given by Jean Piaget in his theory of cognitive development. It occurs in the third stage i.e, the concrete operational stage. A child learns the process of reversibility in middle childhood.
According to Piaget, reversibility refers to the idea that various things can change its form or physical state and can return to its original form. In other words, this is the mental operation that alters a sequence of a specific event and can restore to the original state or condition.
In the question above, Piaget would say that Alice is demonstrating knowledge of reversibility.