Mr Epstein Is Showing the Class a Picture of a Tiger

Mr. Epstein is showing the class a picture of a tiger. Ally, one of his students, tells him that she has one of these animals at home. He tries to explain to her that she must have a cat, not a tiger. She insists that it is a tiger and that she got him at the pet store last month. According to Piaget, what is the teacher trying to do?

A) Throw Ally into a state of disequilibrium
B) Throw Ally into a state of accommodation
C) Throw Ally into a state of equilibration
D) Throw Ally into a state of equilibrium