Though Chimpanzees and Apes Seem to Be Able to Use

Multiple Choice

Though chimpanzees and apes seem to be able to use symbolic gestures (i.e. ,sign language) to convey meaning,some researchers question whether they really understand how to communicate about events and objects that are not physically present;that is,whether they understand

A) generativity.
B) displacement.
C) syntax.
D) surface structure.