**Core Concept**
Nasopharyngeal angiofibroma is a rare, highly vascular benign tumor that predominantly affects adolescent males. It originates from the posterior nasal cavity, specifically from the sphenopalatine foramen.

**Why the Correct Answer is Right**
The tumor is known for its aggressive local growth and tendency to bleed, causing severe nasal obstruction and recurrent epistaxis. The symptoms are often unilateral and can include nasal discharge, facial pain, and sinusitis. The tumor's rapid growth and high vascularity necessitate prompt surgical intervention. Radiotherapy is not the primary treatment of choice due to the tumor's benign nature and the potential for malignant transformation with radiation.

**Why Each Wrong Option is Incorrect**
* **Option A:** The age range of 3rd to 4th decades is not typical for nasopharyngeal angiofibroma, which predominantly affects adolescent males.
* **Option B:** While the tumor does predominantly affect males, stating that it affects "adolescent male" is more accurate and specific than simply stating "males."
* **Option C:** Although epistaxis and nasal obstruction are cardinal symptoms, stating that they are the "cardinal symptom" is an oversimplification.
* **Option D:** Radiotherapy is not the treatment of choice for nasopharyngeal angiofibroma due to its benign nature and potential for malignant transformation with radiation.

**Clinical Pearl / High-Yield Fact**
Nasopharyngeal angiofibroma is a highly vascular tumor that requires careful preoperative embolization to minimize bleeding risk during surgical resection.

**Correct Answer: B. Adolescent male**