**Core Concept**
Peripoal fatty infiltration of the liver refers to the accumulation of fat droplets within the peripoal hepatocytes, which are the cells surrounding the central vein in the liver lobules. This condition is characterized by the abnormal accumulation of triglycerides within these cells, leading to cell injury and dysfunction.

**Why the Correct Answer is Right**
Viral hepatitis, particularly hepatitis C, has been associated with peripoal fatty infiltration of the liver. This is thought to occur due to the direct cytopathic effect of the virus on hepatocytes, leading to mitochondrial dysfunction and impaired fatty acid oxidation. As a result, the hepatocytes accumulate excess fatty acids, which are then stored as triglycerides, causing peripoal fatty infiltration. The mechanisms underlying this phenomenon involve the activation of various signaling pathways, including the PI3K/Akt pathway, which regulates lipid metabolism and cell survival.

**Why Each Wrong Option is Incorrect**

**Option A:** Alcoholism is more commonly associated with macrovesicular steatosis, where large fat droplets accumulate within the hepatocytes, rather than peripoal fatty infiltration.

**Option C:** Malnutrition can lead to a range of liver abnormalities, including fatty liver disease, but it is not specifically associated with peripoal fatty infiltration.

**Option D:** Tetracycline is an antibiotic that can cause cholestatic hepatitis, but it is not typically associated with peripoal fatty infiltration of the liver.

**Clinical Pearl / High-Yield Fact**
It is essential to recognize that peripoal fatty infiltration can be a feature of various liver diseases, including viral hepatitis, and is not exclusive to alcoholic liver disease or malnutrition. A detailed understanding of the underlying pathophysiology is crucial for accurate diagnosis and management.

✓ Correct Answer: B. Viral hepatitis