Final answer:
The correct statement regarding the DSM-5 criteria for the diagnosis of binge-eating disorder is option 3.
Step-by-step explanation:
The correct statement regarding the DSM-5 criteria for the diagnosis of binge-eating disorder is option 3. Binge eating in this disorder occurs, on average, at least two days a week for six months. The other statements are incorrect. In binge-eating disorder, binge eating does not occur exclusively during the course of bulimia nervosa (option 1), it occurs, on average, at least once a week for three months (option 2), and distress regarding binge eating is present (option 4), not absent (option 5).