**Core Concept**
The ligamentum teres hepatis is a fibrous remnant of the umbilical vein, which plays a crucial role in fetal circulation. This ligament is a vital anatomical structure that connects the liver to the umbilicus.

**Why the Correct Answer is Right**
During embryonic development, the umbilical vein carries oxygenated blood from the placenta to the fetus. As the fetus develops, the umbilical vein undergoes significant changes, eventually regressing and becoming the ligamentum teres hepatis. This ligament is a fibrous remnant that remains after birth, connecting the liver to the umbilicus. The loss of the umbilical vein's patency is a result of the involution of the ductus venosus, which is a critical shunt in fetal circulation.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the ligamentum teres hepatis is not developed from the portal vein. The portal vein is a major blood vessel that carries deoxygenated blood from the digestive organs to the liver.
**Option B:** This option is incorrect because the ligamentum teres hepatis is not developed from the hepatic artery. The hepatic artery is a vital blood vessel that supplies oxygenated blood to the liver.
**Option C:** This option is incorrect because the ligamentum teres hepatis is not developed from the cystic duct. The cystic duct is a small duct that connects the gallbladder to the common bile duct.

**Clinical Pearl / High-Yield Fact**
The ligamentum teres hepatis is a potential pathway for the spread of infection from the umbilicus to the liver. This is an important clinical consideration, particularly in cases of umbilical hernias or omphalitis.

**Correct Answer: D.**