DrPenny Patterson Was Reading a New Book,The Touch and Feel

Multiple Choice

Dr.Penny Patterson was reading a new book,The Touch and Feel Kitten,to Koko.Koko said,while rubbing the fur of the cat on the cover against her cheek,"Look cat there.Soft." This illustrates the fact that animals such as Koko can:

A) be classically conditioned to use sign language.
B) can be trained to mimic sign in humans but do not understand the meaning in their gestures.
C) demonstrate spontaneous and generative use of language.
D) be considered predators to domestic animals such as cats.