A patient's care plan includes monitoring for auditory hallucinations. Which assessment findings suggest the patient may be hallucinating?

A. Foot tapping and repeatedly writing the same phrase suggest compulsive or stereotypic behavior, not hallucinations. B. Detachment and overconfidence may indicate personality or mood disturbances, but not hallucinations. C. Euphoric mood, hyperactivity, and distractibility are signs of mania, not auditory hallucinations. D. Darting eyes, tilted head, and mumbling to self are classic behaviors seen when a patient is responding to internal stimuli such as auditory hallucinations.