**Core Concept**
The greater cornu of the hyoid bone serves as a significant anatomical landmark for various structures in the neck. It is closely related to the **hypoglossal nerve** and several arteries. The tip of the greater cornu is particularly important for locating a specific artery that supplies blood to the tongue and adjacent structures.

**Why the Correct Answer is Right**
The **lingual artery**, a branch of the **external carotid artery**, is closely associated with the tip of the greater cornu of the hyoid bone. This artery is crucial for supplying blood to the tongue, the floor of the mouth, and the gingiva. The lingual artery's location near the hyoid bone makes it a key landmark for surgical and clinical procedures in this region.

**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because it does not correspond to the lingual artery.
**Option B:** Incorrect as it is not related to the specific landmark.
**Option C:** Incorrect because it does not match the correct answer.
**Option D:** Incorrect as it is not associated with the given landmark.

**Clinical Pearl / High-Yield Fact**
The relationship between the greater cornu of the hyoid bone and the lingual artery is crucial for surgeons and clinicians to understand, especially during procedures involving the tongue and the floor of the mouth. This knowledge helps in avoiding damage to the artery and ensuring proper blood supply to the region.

**Correct Answer:** D. Lingual artery