Sally Has a Dog at Home, So She Knows About

Sally has a dog at home, so she knows about dogs. She is walking down the street and sees an animal walking toward her. The animal has four legs, fur, and a tail. Sally knows that these are characteristics of dogs. But the animal coming toward her is meowing, not barking. Sally's mom tells her that the animal is a cat. Now when Sally sees an animal with four legs, a tail, and fur, she will conclude it is a dog if it barks and a cat if it meows, illustrating Piaget's concept of "_____."

A) operations
B) assimilation
C) equilibrium
D) accommodation