Humanism
Humanism approach could explain this situation by having the person decide whether they wanted to do the right thing and help the student out. Also they could examine the event and the feelings the student was feeling at that time to help them out.
Neurobiological
Neurobiological approach cannot explain this situation because it has nothing to do with chemical imbalance or any mental or health problem.
3) A new student not wanting to join in any activities at their new high school
Behaviorism
Behaviorism approach can explain the situation by having the new student examine their environment, which is their new school and why they don’t want to join any activities. Maybe the see the activities as boring and not them or the requirements to join they don’t like.