C:To trade for furs
That’s the answer
The government works the same for every state. Some states implement different laws for their borders but the basic principles are the same throughout the United States.
The method in question is called the still-face paradigm.
Infants like to see the reaction in other people when they are doing something - smiling, laughing, vocalizing, pointing at something. However, when this paradigm was used, people would just stare at the child emotionlessly. Suddenly, the child would grow anxious and desperately seek the person's attention, which tells us a lot about their expectations.
