You are answering a USMLE-style medical question. Question: A 5-year-old Syrian immigrant and her family present for an immigration physical. Her mother describes photophobia, bilateral lacrimation, eye itching, and eyelid swelling for the last week. She is known to have an allergy to cephalosporins. She was born at 39 weeks gestation via spontaneous vaginal delivery. She has met all of her developmental milestones and most of her vaccines. Her vital signs are as follows: blood pressure 105/60 mm Hg, heart rate 98/min, respiratory rate 18/min, and temperature 37.0°C (98.6°F). The physical examination is mostly normal except for her eye exam as presented in the image below. Which of the following statements is true regarding treatment of this patient’s condition? Options: A) A third-generation cephalosporin would be the best treatment option in case the child did not have an actual allergy. B) The child should be treated with topical bacitracin. C) The best treatment option is oral tetracycline. D) The child should be administered a single dose of oral azithromycin. Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.