This man is demonstrating which of the following defense mechanisms?

Displacement involves redirecting emotions or feelings from the original source of distress to a safer target. For example, someone might take out their frustration from work on a family member. Since the man is not redirecting his feelings but rather refusing to acknowledge them, this choice does not apply.

Projection entails attributing one’s own unacceptable feelings or thoughts to someone else. For instance, an individual who feels angry may accuse others of being hostile. The man's behavior does not involve projecting his feelings onto others; instead, he is denying his own feelings, making this option incorrect.

Repression is the unconscious blocking of undesirable thoughts or memories from awareness. While it may seem similar to denial, repression occurs without conscious awareness, whereas denial involves a conscious refusal to accept reality. Thus, the man's behavior aligns more closely with denial than repression.

Sublimation is the process of channeling unacceptable impulses into socially acceptable actions, such as through art or sports. The man’s behavior does not illustrate this mechanism, as he is not transforming negative feelings into constructive actions but rather refusing to accept them entirely.