Which of the Following Is an Example of the Type

Which of the following is an example of the type of observational data called consequences of a behavior?

A) Staff members avoid contact with Juan when he is depressed.
B) Juan is most likely to become depressed in the evening and at night.
C) Juan reports that he is very angry when staff members do not talk with him.
D) Staff members tend to spend most of their time in conversation with each other.