Which of the following is a form of conflict expression?

Citing argument as a form of conflict expression is correct because arguments often emerge in situations where individuals feel strongly about differing perspectives. An argument represents an overt display of disagreement, where individuals articulate their viewpoints, confront each other, and engage in discussions that can escalate into heated exchanges. This form of conflict expression is characterized by emotional involvement and can either help clarify misunderstandings or lead to deeper discord, depending on how it is managed.

Options like silence might suggest avoidance or suppression of conflict rather than an expression of it. Negotiation and collaboration are more constructive approaches to conflict resolution, focusing on finding common ground or solutions rather than expressing hostility or disagreement. In contrast, an argument is inherently about publically voicing one's stance and emotions, making it a quintessential form of conflict expression.