**Core Concept**
Pheochromocytoma is a rare, catecholamine-secreting tumor of the adrenal medulla, often associated with hypertension, tachycardia, and other symptoms resulting from excessive epinephrine and norepinephrine release. The clinical presentation of pheochromocytoma can vary widely due to the unpredictable nature of catecholamine surges.

**Why the Correct Answer is Right**
Pheochromocytoma is characterized by the excessive production of catecholamines, including epinephrine, norepinephrine, and dopamine. This leads to symptoms such as hypertension, tachycardia, palpitations, sweating, and headaches. The correct answer is associated with the typical presentation of pheochromocytoma.

**Why Each Wrong Option is Incorrect**
* **Option A:**
- This option is incorrect because it does not align with the typical presentation of pheochromocytoma. The symptoms of pheochromocytoma are primarily related to the effects of catecholamines, not the tumor itself.
* **Option B:**
- This option is incorrect because it is a characteristic feature of pheochromocytoma. The excessive release of catecholamines can lead to severe hypertension, which is a hallmark of this condition.
* **Option C:**
- This option is incorrect because it is not a typical symptom of pheochromocytoma. While patients may experience anxiety or tremors due to catecholamine surges, this is not a defining feature of the condition.

**Clinical Pearl / High-Yield Fact**
A key clinical feature of pheochromocytoma is the episodic nature of its symptoms, which can be triggered by various factors such as stress, exercise, or micturition. This episodic presentation can be a critical clue in diagnosing this condition.

**Correct Answer: B. Hypertension**