How does the individual perceive their drinking habits in relation to others' concerns?

The individual perceives their drinking habits as not being a problem, which leads them to deny any concerns raised by others. This denial can stem from a variety of mechanisms, such as rationalization, where the person believes that their behavior is normal or acceptable. By dismissing concerns, they avoid confronting any potential issues surrounding their drinking, which can hinder their ability to assess their habits realistically.

Acknowledging concerns from others would indicate some level of self-reflection or recognition of a problem, while feeling justified suggests that they agree with their habits in the face of criticism. Pressure implies an external force affecting their perception, which is not aligned with outright denial. Hence, the correct option reflects a common behavioral response observed in individuals who may not yet recognize the impact of their drinking on themselves or their relationships.