**Core Concept**
The vestibulo-ocular reflex (VOR) is a reflex that stabilizes images on the retina during head movements, ensuring clear vision. This reflex involves the vestibular system, which is responsible for detecting changes in head position and movement.

**Why the Correct Answer is Right**
The flocculonodular lobe, a part of the cerebellum, plays a crucial role in the vestibulo-ocular reflex. It receives inputs from the vestibular nuclei and sends outputs to the oculomotor nuclei to adjust eye movements accordingly. This complex circuitry enables the VOR to compensate for head movements, allowing the eyes to maintain focus on a fixed point. The flocculonodular lobe's involvement in the VOR is essential for maintaining balance and preventing blurred vision during head movements.

**Why Each Wrong Option is Incorrect**
**Option A:** The archicerebellum, also known as the paleocerebellum, is primarily involved in the regulation of posture and balance, but it is not directly responsible for the vestibulo-ocular reflex.

**Option C:** The neocerebellum, or neocerebellum, is responsible for coordinating voluntary movements, such as walking and running, but it does not play a primary role in the vestibulo-ocular reflex.

**Option D:** The occipital lobe is primarily involved in processing visual information, but it is not directly involved in the vestibulo-ocular reflex, which is a motor response to head movements.

**Clinical Pearl / High-Yield Fact**
The vestibulo-ocular reflex is often impaired in patients with inner ear disorders, such as labyrinthitis or vestibular neuritis, which can cause symptoms of vertigo and blurred vision.

**✓ Correct Answer: B. Flocculonodular lobe**