**Core Concept**
Sporotrichosis is a subcutaneous mycosis caused by the dimorphic fungus Sporothrix schenckii. It primarily affects the skin and subcutaneous tissue, often resulting from traumatic inoculation of the fungus into the skin.

**Why the Correct Answer is Right**
Sporotrichosis typically presents as a chronic, localized disease that involves the skin, subcutaneous tissue, and regional lymphatics. This is because the fungus grows slowly in the skin, causing a localized inflammatory reaction and subsequent lymphatic spread. The characteristic beaded chain of enlarged lymph nodes, as described in option C, is a hallmark of this disease.

**Why Each Wrong Option is Incorrect**
**Option A:** This statement is true as sporotrichosis is indeed a chronic mycotic disease that typically involves the skin, subcutaneous tissue, and regional lymphatics.

**Option B:** This statement is also true as most cases of sporotrichosis are acquired through cutaneous inoculation, often from plant material such as thorns or splinters.

**Option C:** This statement is true as well. Enlarged lymph nodes extending centripetally as a beaded chain are a characteristic finding in sporotrichosis, resulting from the spread of the fungus through the lymphatic system.

**Option D:** This statement is false as sporotrichosis is not an occupational disease of butchers and doctors. While it can affect anyone who comes into contact with the fungus, the primary risk group consists of gardeners, farmers, and others who work with soil and plants.

**Clinical Pearl / High-Yield Fact**
Sporotrichosis can be treated with itraconazole or other antifungal medications, but it is essential to identify and remove the source of the fungal inoculation to prevent further spread of the disease.

**Correct Answer:**
✓ Correct Answer: D. It is an occupational disease of butchers and doctors