The Traditional View of Nonhuman Communication Has Been That Nonhumans

The traditional view of nonhuman communication has been that nonhumans, including primates,

A) are perfectly capable of conveying information about the external environment or their emotional state.
B) use symbolic communication.
C) use language in the same manner as humans.
D) can convey information about events in the past and future.
E) communicate information relating to their emotional state and consists of mostly involuntary vocalization.