**Core Concept:**
The visual area refers to the specific regions in the brain responsible for processing visual information. In humans, these areas are located in the occipital lobe, specifically in the lateral geniculate nucleus (LGN), primary visual cortex (V1, Brodmann area 17), and higher-order visual areas (V2, V3, V4, V5, etc.).

**Why the Correct Answer is Right:**
The correct answer (D) states that the visual area is supplied by the ophthalmic artery (Arteria oculomotoria). The ophthalmic artery is a branch of the internal carotid artery, which is the primary source of blood supply to the brain, including the visual areas. It provides essential nutrients and oxygen to the brain, including the visual areas responsible for vision processing.

**Why Each Wrong Option is Incorrect:**
A) Option A (Anterior cerebral artery) supplies blood to the frontal lobe, not the visual areas.
B) Option B (Posterior cerebral artery) supplies blood to the parietal lobe, not the visual areas.
C) Option C (Basilar artery) supplies blood to the brainstem and cerebellum, not directly to the visual areas.

**Clinical Pearl / High-Yield Fact:**
Understanding the blood supply to brain regions is crucial in interpreting stroke patterns and diagnosing stroke cases. A stroke affecting the visual areas can lead to visual disturbances, impairing the patient's ability to see, process, and interpret visual information. This knowledge helps in making an accurate diagnosis and providing timely treatment for patients with neurological symptoms.