Correct Response: D. Responsible digital citizens have empathy for victims of cyberbullying, and they avoid supporting this behavior through the sharing, tolerating, or providing of feedback to cyberbullying posts. A is incorrect because bullying should not be tolerated, no matter the medium. B is incorrect because knowledge of techniques may help students protect themselves, but does not get at the root issues around cyberbullying and its spread. C is incorrect because monitoring student Internet activity and blocking student access to social media will not provide opportunities to promote positive and responsible digital citizenship skills among students.