A Pet Monkey Was Presented with Pictures of a Variety

Multiple Choice

A pet monkey was presented with pictures of a variety of cars interspersed with pictures of a variety of animals.The monkey's ability to separate all the car pictures into one pile and all the animal pictures into another,separate pile would best illustrate the monkey's capacity for

A) receptive language.
B) concept formation.
C) bilingual communication.
D) learning rules of syntax.