Four-Year-Old Sanjay Has Invented an Imaginary Companion,an Invisible Octopus Named

Four-year-old Sanjay has invented an imaginary companion,an invisible octopus named Squiggles.How would a proponent of Piaget's theories most likely react to Sanjay's behavior?

A) He might suspect that Sanjay is cognitively and socially advanced.
B) He would see it as a sign of possible mental illness.
C) He would suggest that Sanjay cannot decenter from an object.
D) He would state that it is impossible for a pre-school child to create imaginary companions.