Which Scenario Illustrates the Bad Apple Effect

Which scenario illustrates the bad apple effect?

A) Dumi has always been a bit deviant.Since he has been deviant at many times and in many situations, he is likely to be deviant many more times and in many more situations in the future as well.
B) Thandi experiences social rejection by her peers.As a result, she begins to shoplift and vandalise buildings.
C) Ten-year-old Nandi began playing pranks on her teacher about a month ago - throwing things at him when his back was turned and making derogatory jokes at his expense.Now, the class is in mayhem because gradually, everyone else in the class began copying her.
D) Njabulo is eight, and he experiences social rejection by his peers.As a result, he learns to socially reject other children as soon as he meets them.