This statement is not true. It is a false statement because both these sub parts are not small or are not for kids. Both these are adults and are of legal age so they are not applied to juveniles.
Sub part C and D are found guilty of the crime that they have committed and are put behind the bars. They are imprisoned and not applied to juveniles for the modification in their behavior and to change them.
The reason that American settlers felt it was necessary to remove the native Americans from the land they were invading was because they felt that they were a threat, and would attack them for encroaching on their land and property.