**Core Concept**
The duodenum, the first part of the small intestine, receives its blood supply from branches of the celiac trunk and the superior mesenteric artery, reflecting its unique embryological origin and anatomical location.

**Why the Correct Answer is Right**
The arterial supply of the duodenum is provided by the superior pancreaticoduodenal artery and the inferior pancreaticoduodenal artery. The superior pancreaticoduodenal artery arises from the gastroduodenal artery, which is a branch of the common hepatic artery. In contrast, the inferior pancreaticoduodenal artery originates from the superior mesenteric artery. These arteries anastomose to form a network that supplies the duodenum and the pancreas. This dual blood supply is crucial for maintaining the viability of the duodenum and the pancreas.

**Why Each Wrong Option is Incorrect**
* **Option B:** This option is incorrect because it does not specify the correct arteries supplying the duodenum.
* **Option C:** This option is incorrect because it mentions the hepatic artery, which supplies the liver, not the duodenum.

**Clinical Pearl / High-Yield Fact**
The duodenum is a unique region of the gastrointestinal tract with a dual blood supply, which is essential for maintaining its function and viability. This characteristic can be remembered using the mnemonic "Superior and Inferior, like the duodenum's supply, a dual blood flow to keep it alive."

**Correct Answer: A. Superior pancreaticoduodenal artery and inferior pancreaticoduodenal artery.**