Okay, let's tackle this question about the visual area of the cortex and its blood supply. First, I need to recall the anatomy of the cerebral cortex, specifically the occipital lobe. The primary visual cortex, also known as V1 or Brodmann area 17, is located in the occipital lobe.

Now, the blood supply to the brain regions is crucial. The posterior cerebral artery (PCA) is a major supplier to the occipital lobe. The PCA arises from the basilar artery and branches into the medial and lateral posterior cerebral arteries. The visual cortex is supplied by the calcarine artery, which is a branch of the PCA. This artery typically arises from the posterior cerebral artery and runs along the calcarine sulcus, supplying the primary visual cortex.

Wait, let me make sure. The middle cerebral artery supplies the lateral parts of the frontal, parietal, and temporal lobes. The anterior cerebral artery is for the medial aspects. The posterior cerebral artery is definitely the one for the occipital lobe. So the correct answer here should be the posterior cerebral artery.

Looking at the options, if the correct answer is option C, then the explanation would focus on the PCA's role. The other options, like the middle or anterior cerebral arteries, don't supply the visual cortex. The basilar artery is a trunk artery that gives rise to the posterior cerebral arteries but isn't the direct supplier itself. So the key here is understanding the arterial territories and their branches.

**Core Concept**
The primary visual cortex (Brodmann area 17) in the occipital lobe is supplied by the **posterior cerebral artery (PCA)** via its branch, the **calcarine artery**. This is part of the posterior circulation, derived from the basilar artery.

**Why the Correct Answer is Right**
The **posterior cerebral artery** originates from the basilar artery and gives rise to the calcarine artery, which runs along the calcarine sulcus to supply the primary visual cortex. The PCA's territory includes the occipital lobe, medial temporal lobe, and parts of the parietal lobe, making it the sole supplier to the visual cortex.

**Why Each Wrong Option is Incorrect**
**Option A:** *Middle cerebral artery* supplies lateral frontal, parietal, and temporal lobes but not the occipital lobe.
**Option B:** *Anterior cerebral artery* supplies medial frontal and parietal lobes; no occipital lobe involvement.
**Option D:** *Basilar artery* is a trunk artery that gives rise to the posterior cerebral arteries but does not directly supply the visual cortex.

**Clinical Pearl / High-Yield Fact**
Remember the "PCA territory" as including the **occipital lobe (visual cortex)** and **medial temporal lobe (hippocampus)**. A PCA stroke often causes **homonymous hemianopia** (contralateral visual field loss), a classic exam question topic.

**Correct Answer: C. Posterior cerebral artery**

✓ Correct Answer: C. Posterior cerebral aery