Research in Which Chimpanzees Are Trained to Use Language Reveals

Multiple Choice

Research in which chimpanzees are trained to use language reveals all of the following EXCEPT that

A) chimpanzees can be taught to communicate using gestures.
B) chimpanzees use longer sentences only because they repeat themselves
C) chimpanzees cannot master anything beyond the simplest of grammatical rules.
D) acquisition of language by humans need not involve any innate mechanisms.