**Core Concept**
The retina is a highly specialized neural tissue that requires a rich blood supply to maintain its function. The blood supply to the retina is provided by two main sources: the retinal arteries, which are branches of the ophthalmic artery, and the choroidal circulation.

**Why the Correct Answer is Right**
The retinal arteries supply the inner layers of the retina, including the nerve fiber layer and the ganglion cell layer. The choroidal circulation, on the other hand, supplies the outer layers of the retina, including the photoreceptors and the retinal pigment epithelium. However, the retina does not receive its blood supply from the central retinal vein.

**Why Each Wrong Option is Incorrect**
* **Option A:** Not mentioned in the options, but assuming it's a plausible answer, we can say that this option does not match the known anatomy of the retina.
* **Option B:** This option is incorrect because the retinal arteries do indeed supply the retina.
* **Option D:** This option is incorrect because the choroidal circulation does indeed supply the retina.

**Clinical Pearl / High-Yield Fact**
The blood-retinal barrier is a unique property of the retinal pigment epithelium that prevents the passage of certain substances from the choroidal circulation into the retina.

**Correct Answer:** D. Central retinal vein.