Augusta is making silly faces at her 3-month-old baby, Umberto. ...

[Kikoku]

Augusta is making silly faces at her 3-month-old baby, Umberto. All of a sudden, she stops making faces and assumes a neutral expression. Umberto is unhappy with this and tries to make her change her face. Umberto seems to understand
 
  A) reciprocity.
  B) effectance.
  C) trust.
  D) adaptation.

Question 2

Little Derek has learned to take turns when playing peek-a-boo with his father. This shows that he has learned about
 
  A) reciprocity.
  B) effectance.
  C) trust.
  D) adaptation.

[14vl19]

Answer to Question 1

A

Answer to Question 2

A