Final answer:
Conflict vs. disagreement in managing conflict. Therefore, the correct option is D. Conflict and disagreement.
Step-by-step explanation:
When managing conflict, it is important to know the difference between conflict and disagreement. Conflict refers to a serious disagreement or argument between individuals or groups, often with strong emotions involved. It can arise from conflicting interests, values, or beliefs. Disagreement, on the other hand, refers to a difference of opinion or perspective that may not necessarily involve strong emotions or lead to a serious conflict.