**Core Concept**
Conduct disorder is a serious behavioral and emotional disorder that can occur in children and adolescents. It is characterized by a pattern of negative, hostile, and defiant behavior, and is often associated with an increased risk of developing various mental health disorders later in life, including personality disorders.

**Why the Correct Answer is Right**
Research has shown that individuals with conduct disorder are at a higher risk of developing Antisocial Personality Disorder (ASPD). This is because conduct disorder is often characterized by a lack of empathy, impulsivity, and aggression, which are also key features of ASPD. Additionally, individuals with conduct disorder are more likely to have a history of trauma, neglect, and other adverse childhood experiences, which can contribute to the development of ASPD.

**Why Each Wrong Option is Incorrect**
* **Option A:** Borderline Personality Disorder (BPD) is characterized by emotional dysregulation, impulsivity, and unstable relationships, but it is not as strongly associated with conduct disorder as ASPD.
* **Option B:** Narcissistic Personality Disorder (NPD) involves grandiosity, a need for admiration, and a lack of empathy, but it is not typically linked to conduct disorder.
* **Option C:** Avoidant Personality Disorder (AVPD) is characterized by feelings of inadequacy, social anxiety, and avoidance of social interactions, which is not directly related to conduct disorder.

**Clinical Pearl / High-Yield Fact**
Individuals with conduct disorder are more likely to develop ASPD if they have a history of trauma, neglect, or other adverse childhood experiences, and if they exhibit a lack of empathy and impulsivity.

**Correct Answer: D. Antisocial Personality Disorder (ASPD)**