**Core Concept**
Ductopenia refers to a reduction in the number of bile ducts within the liver, leading to cholestasis and impaired bile flow. This condition is often associated with autoimmune hepatitis, primary biliary cirrhosis, and other cholestatic liver diseases.

**Why the Correct Answer is Right**
The correct answer is related to the pathophysiology of primary biliary cirrhosis (PBC). PBC is an autoimmune disease characterized by the destruction of intrahepatic bile ducts, leading to cholestasis and subsequent liver damage. The immune system mistakenly attacks the bile ducts, causing ductopenia and impaired bile flow.

**Why Each Wrong Option is Incorrect**

* **Option A:** This option is incorrect because autoimmune hepatitis primarily affects the hepatocytes rather than the bile ducts.
* **Option B:** This option is incorrect because primary sclerosing cholangitis (PSC) primarily affects the extrahepatic bile ducts, although it can also involve the intrahepatic bile ducts.
* **Option C:** This option is incorrect because Wilson's disease is a genetic disorder that affects copper metabolism and does not primarily involve bile duct destruction.

**Clinical Pearl / High-Yield Fact**
Primary biliary cirrhosis is often associated with other autoimmune diseases, such as Sjögren's syndrome, Hashimoto's thyroiditis, and type 1 diabetes. This association highlights the complex interplay between the immune system and various organs.

**Correct Answer: D. Primary biliary cirrhosis**