**Core Concept**
The question tests knowledge of **mycology**, specifically the classification of fungi. Yeast-like fungi are a group of organisms that exhibit characteristics of both yeasts and molds.

**Why the Correct Answer is Right**
Without the specific options, the general approach to determining which is not a yeast-like fungus involves understanding the characteristics of yeast-like fungi, such as **Blastomyces**, **Candida**, and **Histoplasma**, which can exist in both yeast and mold forms depending on the environment.

**Why Each Wrong Option is Incorrect**
**Option A:** Would be incorrect if it were a known yeast-like fungus.
**Option B:** Similarly, if it represents a fungus known to have yeast-like characteristics, it would not be the correct answer.
**Option C:** If this option is a recognized yeast-like fungus, it would also be an incorrect choice.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that yeast-like fungi can cause significant diseases in humans, such as **candidiasis** and **histoplasmosis**, and their diagnosis often relies on identifying their morphological forms.

**Correct Answer:** D. Aspergillus.