**Core Concept**
The intervertebral disc is a fibrocartilaginous joint that connects adjacent vertebral bodies in the spine, allowing for flexibility and absorption of shocks. It consists of the nucleus pulposus, a gel-like center, and the annulus fibrosus, a tough outer layer.

**Why the Correct Answer is Right**
The intervertebral disc is indeed composed of the nucleus pulposus and the annulus fibrosus. The nucleus pulposus is rich in water and glycosaminoglycans, which provide the disc's compressive strength and flexibility. The annulus fibrosus is a layered structure of collagen fibers that surrounds the nucleus pulposus, maintaining its shape and preventing excessive movement.

**Why Each Wrong Option is Incorrect**
* **Option A:** This statement is true; the intervertebral disc does indeed have a high water content, which helps maintain its structure and function.
* **Option B:** This statement is true; the annulus fibrosus is composed of collagen fibers, which provide tensile strength to the disc.
* **Option C:** This statement is true; the intervertebral disc does indeed have a limited blood supply, which can contribute to its susceptibility to injury and degeneration.

**Clinical Pearl / High-Yield Fact**
Degeneration of the intervertebral disc can lead to disc herniation, where the nucleus pulposus protrudes through a tear in the annulus fibrosus, potentially causing nerve compression and pain.

**Correct Answer:** D.