Which Situation Would Constitute an Example of "Bullying" in the Nursing

Which situation would constitute an example of "bullying" in the nursing environment?

A) The nurse manager instructs a member of the nursing staff in a better way to perform a nursing task.
B) The unit secretary repeatedly talks to nurses and staff in a rude manner.
C) The unlicensed assistive personnel (UAP) on the unit continues to make jokes about another staff member in the presence of others as well as when alone in the staff member's presence.
D) The nurse on the unit gossips about another staff nurse on the unit.