**Core Concept**
Selective granular IgA deposits at dermal papillae tips are a hallmark of a specific autoimmune skin disorder. This finding is characteristic of a condition that involves the deposition of IgA antibodies in the skin, leading to an immune-mediated response.

**Why the Correct Answer is Right**
The correct answer is associated with Dermatitis Herpetiformis (DH), a chronic skin condition characterized by intensely itchy blisters. The granular IgA deposits at the tips of dermal papillae are a result of the body's immune response to gluten, leading to the activation of T-cells and the production of IgA antibodies.

In DH, the immune system mistakenly identifies gluten as a threat and triggers an immune response, leading to the deposition of IgA antibodies at the dermal-epidermal junction. This results in the formation of granular IgA deposits, which are a diagnostic hallmark of the condition.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specifically relate to the deposition of IgA antibodies at the dermal papillae tips. While it may be associated with an autoimmune response, it is not the correct answer.

**Option B:** This option is incorrect because it is not directly related to the deposition of IgA antibodies in the skin. While it may be associated with an immune response, it is not the correct answer.

**Option D:** This option is incorrect because it does not specifically relate to the deposition of IgA antibodies at the dermal papillae tips. While it may be associated with an autoimmune response, it is not the correct answer.

**Clinical Pearl / High-Yield Fact**
Remember that Dermatitis Herpetiformis is a skin manifestation of celiac disease, and the presence of granular IgA deposits is a diagnostic clue. Always consider the possibility of celiac disease in patients with DH.

**Correct Answer:** C. Dermatitis Herpetiformis.