Jonas Knew That Animals with Fur,pointy Ears,a Tail,four Legs,and That

Jonas knew that animals with fur,pointy ears,a tail,four legs,and that say "woof" were called "dogs" by his parents.He saw a new animal and thought it was a dog until it "meowed." Jonas's parents said that it was a "cat." Jonas could now distinguish between a dog and a cat depending on the sound the animal made.This revision of Jonas's schema of a "dog" best illustrates:

A) assimilation.
B) accommodation.
C) formal operations.
D) object permanence.