Answer:
Reversibility
Step-by-step explanation:
Jean Piaget was a psychologist that developed a theory of cognitive development according to which we go through different stages during childhood and adolescence in which our thinking gets more complex until we reach the logic reasoning during adolescence.
One of the concepts that Piaget mentions in his theory is the concept of reversibility, according to which, kids start to understand that the initial conditions of an object can be restored. In other words, we can take an object and change its form but we can also make it go back to its original form and the object will remain the same.
In this example, Alice is working with clay and she rolls a ball of it, then she transforms it into a rope and then she wants it to go back to the shape of a ball again and she knows that this transformation is possible. Alice knows that the first shape the clay had can be restored and the object will be the same. Therefore, she is demonstrating the knowledge of reversibility.