Glynnis Watches Scott Dump a Day's Worth of Tree Seedlings

Glynnis watches Scott dump a day's worth of tree seedlings into a ravine instead of planting them. The company that employs Glynnis and Scott has a strict policy about this action, which is viewed as theft. Glynnis calls Scott a jerk, tells her friends what he has done, and ignores him for the rest of the season. What is Glynnis engaging in?

A) informal punishment
B) norm enhancement
C) formal punishment
D) unprovoked harassment