**Core Concept**
The Carney triad is a rare hereditary disorder characterized by the occurrence of multiple neoplasms, including specific types of tumors that arise from embryonal remnants and are of neural crest origin.

**Why the Correct Answer is Right**
The Carney triad consists of three main components:
- **Gastric carcinoma or leiomyosarcoma**: These are malignant tumors that arise from the stomach and are often associated with the Carney triad.
- **Paraganglioma**: This is a type of neuroendocrine tumor that arises from the parasympathetic nervous system and is commonly seen in patients with the Carney triad.
- **Pulmonary chondroma**: This is a benign tumor that arises from cartilaginous tissue and is often associated with the Carney triad.

**Why Each Wrong Option is Incorrect**
**Option A:** Gastric carcinoma is not the defining feature of the Carney triad, although it is one of the tumors that can be associated with the condition.
**Option D:** Carcinoma bronchus is not a component of the Carney triad, and its inclusion would be more characteristic of a different clinical entity.
**Option E:** Chondromatosis is not a recognized component of the Carney triad; it is a different clinical condition that involves the growth of multiple cartilaginous nodules.

**Clinical Pearl / High-Yield Fact**
The Carney triad is an autosomal dominant disorder, meaning that a single copy of the mutated gene is sufficient to cause the condition. This knowledge can help clinicians recognize the familial nature of the condition and counsel at-risk family members.

**Correct Answer:** B. Paraganglioma