Research on the communication skills of nonhuman primates reveals their inability to refer to objects that are not immediately present in their environment, such as food and danger. The ability to describe things and events that are not present is called .

B. displacement.

Explanation:

The researcher that use to study the communication skills of the nonhuman primates reveals that there exists an inability that they are unable to refer to the object that found in their immediate presence. Such as food and danger and this ability of primates to describe the events and the things that aren't present is called s displacement.