You are answering a USMLE-style medical question. Question: A 53-year-old man comes to the physician for a follow-up appointment three days after being prescribed a selective alpha-1 agonist. He reports improvement in his symptoms and has not experienced any adverse effects. This drug was most likely prescribed for which of the following conditions? Options: A) Bronchospasm due to bronchial asthma B) Urinary hesitancy due to benign prostatic hyperplasia C) Nasal congestion due to a viral infection D) Blood pressure management prior to pheochromocytoma excision Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.