**Core Concept**
Tinea infections are a group of fungal diseases caused by dermatophytes, which are a type of fungi that infect the outer layer of the skin, hair, and nails. These infections are also known as ringworm due to the characteristic ring-like appearance of the lesions.

**Why the Correct Answer is Right**
The correct answer is a type of dermatophyte that infects the hair, skin, and nails. Dermatophytes produce enzymes such as keratinase and lipase that break down the keratin and lipids in the skin, hair, and nails, leading to the characteristic lesions. The most common dermatophytes that cause tinea infections are Trichophyton, Microsporum, and Epidermophyton species. Tinea infections are typically spread through direct contact with an infected person or animal, or through contaminated objects.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it is not a type of dermatophyte that infects the hair, skin, and nails.
**Option B:** This option is incorrect because it is a type of fungus that causes yeast infections, not tinea infections.
**Option C:** This option is incorrect because it is a type of fungus that causes mucormycosis, a serious but rare fungal infection that affects the sinuses and brain.

**Clinical Pearl / High-Yield Fact**
The most common tinea infections are tinea pedis (athlete's foot), tinea cruris (jock itch), and tinea capitis (ringworm of the scalp).

**Correct Answer:** C.