The absenteeism related behavior in which children willingly make themselves absent from the classroom or outside classroom activities of the school without the prior permission of their parents is called as:

Correct option is D

Truancy refers to the behavior of children willingly making themselves absent from school or school-related activities without obtaining prior permission from their parents or guardians. It is a form of absenteeism where students skip classes or skip school altogether without a legitimate reason. Truancy can have various underlying causes, including disengagement from school, academic difficulties, or personal issues. It is a concern for educators and parents as it can negatively impact a child's education and future prospects. Schools and authorities often have measures in place to address and prevent truancy.