Which definition best describes 'body image' in the context of nutrition and eating behaviors?

A formally diagnosed psychiatric disorder characterized by persistent disturbances in eating behavior and related thoughts and emotions that meet defined clinical criteria.

A person's thoughts, feelings, and perceptions about their own body.

Any atypical or unhealthy eating behavior such as restrictive dieting, binging, excessive exercise, or purging that does not necessarily meet clinical diagnostic criteria but may increase risk of an eating disorder.

An ongoing, pervasive mental preoccupation with perceived body flaws that significantly impairs functioning and causes distress, often leading to behavioral attempts to hide or fix perceived defects and requiring clinical attention when persistent and impairing daily life.