Answer:
The correct answer to the following question will be "Preoperational".
Step-by-step explanation:
- The preoperative or preoperational stage seems to be the second phase of cognitive development philosophy by Piaget.
- This phase starts about the age of two and will last until about 7 years old. Infants are considered on some kind of abstract level throughout this time but were not using conceptual actions yet.
So that, in the given scenario Piaget will also argue that Jeff would be in the developmental preoperative stage.