**Core Concept**
The question tests the understanding of **personality disorders**, specifically the classification of cluster C personality disorders, which are characterized by **anxious** or **fearful** behavior. Cluster C includes **avoidant**, **dependent**, and **obsessive-compulsive** personality disorders.

**Why the Correct Answer is Right**
Since the correct answer is not provided, I will explain the general concept. Cluster C personality disorders are a group of disorders marked by **anxiety** and **fearfulness**. These individuals often exhibit **inhibited** or **restricted** behavior, and their actions are frequently driven by a desire to avoid **criticism** or **rejection**.

**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific answer choices, it's challenging to provide detailed explanations for each incorrect option.
**Option B:** Typically, cluster B personality disorders, such as **borderline** or **narcissistic**, would be incorrect as they are characterized by **dramatic** or **erratic** behavior.
**Option D:** This might be a cluster A personality disorder, which includes **paranoid** or **schizoid** types, characterized by **odd** or **eccentric** behavior.

**Clinical Pearl / High-Yield Fact**
Remembering the clusters of personality disorders can be simplified by associating cluster C with **"anxious"** behaviors, such as avoidance or dependence on others.

**Correct Answer:** D. Obsessive-Compulsive Personality Disorder