You are answering a USMLE-style medical question. Question: A 35-year-old woman presents to the physician because of episodes of difficulty swallowing for the past 3 months. She feels solid food getting stuck in her chest behind the sternum. She does not have any issues with liquids. She has no coughing or nasal regurgitation. She has no hoarseness or weight loss. She reports occasional heartburn that has lasted for about a year. Her past medical history is significant for asthma and eczema. She has no history of any serious illness and takes no medications. Her vital signs are within normal limits. Physical examination shows no abnormal findings. An endoscopic image of the esophagus is shown. Mucosal biopsy shows eosinophilic infiltration. Which of the following is the most appropriate pharmacotherapy at this time? Options: A) Budesonide B) Fluconazole C) Nitroglycerin D) Omeprazole Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.