Which sentence could the author add to the History section of “The Chattahoochee River” to BEST support the distinctions between the uses of the river in its earlier history and in the modern era?

Atherapist at a free university clinic treats elementary school children with behavior problems who are referred by a social service agency. she is also a doctoral candidate who proposes using data she has and will collect about the children for a case-based research project. describe the type of parental permission which is required in this case?