Which single statement most accurately distinguishes 'hunger' from 'appetite'?

• A. Hunger is the desire to eat triggered only by sight and smell, while appetite is the involuntary pangs indicating energy deficit.
• B. Hunger is the psychological craving for specific foods driven mainly by social cues and emotions, while appetite describes hormone-mediated stomach contractions when energy stores are low that compel intake regardless of food cues.
• C. Hunger and appetite are the same physiologic sensation and are used interchangeably in clinical nutrition contexts.
• D. Hunger is the physiological drive to eat, whereas appetite is the sensory-driven desire to eat.

Answer: (D)