Please read the following paragraph and judge which are supporting sentences.1)In our society, young children are facing many dangers.2) Threats to the well-being of children and adolescents represent threats to the entire society. 3) Inadequate education, unemployment, and poor health care all impair the development of young people. 4) However, the biggest threat to our young lies in the area of drug abuse--- one with the potential to cause widespread harm and serious consequences.5) Prevention of drug abuse by the young should therefore be society's number one priority.