**Core Concept**
Herbert's pits are small depressions in the surface of the liver, resulting from the regenerative process after liver cell loss. This phenomenon is a characteristic feature of subacute and chronic liver diseases, where the liver undergoes fibrosis and nodular regeneration.

**Why the Correct Answer is Right**
Herbert's pits are formed due to the process of liver regeneration, where the liver cells (hepatocytes) proliferate to replace the lost tissue. The regenerating liver tissue leads to the formation of small depressions or pits on the surface of the liver. This process is a result of the liver's attempt to restore its normal architecture and function after injury or disease.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because Herbert's pits are not a feature of acute liver failure, which is a different clinical entity.
* **Option B:** This option is incorrect because liver cysts are a different condition altogether, characterized by the presence of fluid-filled sacs within the liver tissue.
* **Option C:** This option is incorrect because liver abscesses are localized collections of pus within the liver tissue, and are not related to the formation of Herbert's pits.

**Clinical Pearl / High-Yield Fact**
Herbert's pits are an important clinical finding in patients with chronic liver diseases, such as cirrhosis, and can be seen on physical examination of the liver. They are a sign of the liver's attempt to regenerate and repair itself, but also indicate ongoing liver damage and potential progression to cirrhosis.

**Correct Answer: D.**