Concept:Irresponsible behaviour refers to actions that harm a person’s future or well-being.Explanation:Adolescents who act irresponsibly may neglect their studies, skip classes, or lose focus on education.This can lead to poor academic performance and eventually dropping out of school.Peer pressure is a cause of irresponsible behaviour, not a result.Child abuse and responsible parenting are not direct results of adolescent irresponsible behaviour.Answer:D. school dropout.