## **Core Concept**
The question pertains to identifying a dermatological manifestation associated with a specific disease. This requires knowledge of various diseases and their cutaneous presentations. Dermatological manifestations can be a crucial clue to diagnosing systemic diseases.

## **Why the Correct Answer is Right**
The correct answer, **C.**, corresponds to **Porphyria Cutanea Tarda (PCT)**. PCT is a type of porphyria that primarily affects the skin. It is characterized by **blistering**, **erosions**, and **scarring** of sun-exposed areas, particularly the hands and face. This condition results from a deficiency of the enzyme **uroporphyrinogen decarboxylase** (UROD), leading to the accumulation of porphyrins in the skin, which are toxic to skin cells when activated by sunlight.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option does not directly relate to a well-known dermatological manifestation of a specific disease without further context.
- **Option B:** Similarly, without specific details, it's hard to assess its relevance, but it's not the correct association with a notable dermatological manifestation.
- **Option D:** This option also lacks direct correlation with a well-recognized dermatological sign of a particular disease.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that **Porphyria Cutanea Tarda** is often associated with **hepatocellular carcinoma** and **liver dysfunction**. Patients with PCT are at increased risk of developing liver cancer, making liver function tests an important part of their management.

## **Correct Answer:** C. Porphyria Cutanea Tarda.