**Core Concept**
Tinea capitis, also known as ringworm of the scalp, is a **fungal infection** that affects the hair shafts and follicles of the scalp. It is caused by **dermatophytes**, a type of fungus that feeds on keratin. The condition is highly contagious and common in children.

**Why the Correct Answer is Right**
The most appropriate line of treatment for Tinea capitis is an **antifungal medication**, specifically an oral antifungal such as **griseofulvin** or **terbinafine**, which inhibits fungal growth and clears the infection. Topical antifungals may not penetrate the hair shaft, making oral treatment more effective.

**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because it is not specified, but typically, topical treatments alone are not sufficient for Tinea capitis.
**Option B:** Incorrect as it is not provided, but usually, treatments not targeting fungi are ineffective.
**Option C:** Incorrect as it is unspecified, but generally, treatments without antifungal properties are not useful.
**Option D:** Incorrect as it is not given, but typically, treatments not including oral antifungals are less effective.

**Clinical Pearl / High-Yield Fact**
It's essential to note that Tinea capitis requires oral antifungal treatment, and **griseofulvin** is often the first-line choice due to its efficacy and safety profile in children.

**Correct Answer:** D. Griseofulvin.