**Core Concept**
The CDC classification of HIV infection is based on the CD4 T lymphocyte count and the presence of certain clinical conditions. This system categorizes HIV-infected individuals into different groups to guide treatment and management. The **CD4 count** is a key factor in determining the stage of HIV infection.

**Why the Correct Answer is Right**
A CD4 count of 230/L indicates a compromised immune system, but the individual is still asymptomatic. According to the CDC classification, an asymptomatic adult with a CD4 count of 200-499/L falls under category A. This category reflects the early stages of HIV infection where the individual may not exhibit symptoms but has a decreased CD4 count.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not match the given description.
**Option B:**
**Option D:**

**Clinical Pearl / High-Yield Fact**
The CDC classification is crucial for guiding treatment and management of HIV-infected individuals. Remembering the categories and corresponding CD4 counts is essential for clinical practice.

**Correct Answer:** C. Category A.