**Core Concept**
Gastric ulcers that bleed from the lesser curvature often involve the posterior wall of the stomach. The lesser curvature is a common site for gastric ulcers to bleed due to its proximity to the gastroepiploic artery. This area is also known as the "watershed" area of the stomach, where the blood supply is more tenuous.

**Why the Correct Answer is Right**
The gastroepiploic artery is a branch of the gastroduodenal artery, which originates from the common hepatic artery. This artery supplies blood to the posterior wall of the stomach, including the lesser curvature. Bleeding from the lesser curvature in gastric ulcers is often due to erosion of the gastroepiploic artery or its branches. This can lead to significant blood loss, as the gastroepiploic artery is a major supplier of blood to the stomach wall.

**Why Each Wrong Option is Incorrect**
**Option A:** Not applicable (no information provided).
**Option B:** Not directly related to bleeding from the lesser curvature in gastric ulcers.
**Option C:** Not specific to the lesser curvature, as bleeding from the anterior wall can also occur from other sources.

**Clinical Pearl / High-Yield Fact**
The gastroepiploic artery is a common source of bleeding in gastric ulcers located on the lesser curvature. This is due to its proximity to the stomach wall and its role as a major supplier of blood to the posterior wall of the stomach.

**Correct Answer:** C. Gastroepiploic artery.