Here is a Question Example, you should follow the example and answer the Given Question. 
Question Example: 
A 21-year-old sexually active male complains of fever, pain during urination, and inflammation and pain in the right knee. A culture of the joint fluid shows a bacteria that does not ferment maltose and has no polysaccharide capsule. The physician orders antibiotic therapy for the patient. The mechanism of action of action of the medication given blocks cell wall synthesis, which of the following was given?
Options:  A. Gentamicin, B. Ciprofloxacin, C. Ceftriaxone, D. Trimethoprim
Answer: Step 1: A 21-year-old man reports fever, dysuria, and right knee pain. He's sexually active, suggesting he's susceptible to sexually transmitted infections.
Step 2: Joint fluid culture reveals a non-maltose fermenting, non-encapsulated bacterium, implicating a certain range of bacteria.
Step 3: The doctor prescribes an antibiotic that inhibits cell wall synthesis.
Step 4: Among the provided options, Ceftriaxone is the only one known to block bacterial cell wall synthesis.
Conclusion: Thus, the antibiotic given to the patient was C. Ceftriaxone.
Given Question:
A 35-year-old man comes to the physician because of itchy, watery eyes for the past week. He has also been sneezing multiple times a day during this period. He had a similar episode 1 year ago around springtime. He has iron deficiency anemia and ankylosing spondylitis. Current medications include ferrous sulfate, artificial tear drops, and indomethacin. He works as an elementary school teacher. His vital signs are within normal limits. Visual acuity is 20/20 without correction. Physical examination shows bilateral conjunctival injection with watery discharge. The pupils are 3 mm, equal, and reactive to light. Examination of the anterior chamber of the eye is unremarkable. Which of the following is the most appropriate treatment? 
Options: 1. Ketotifen eye drops, 2. Fluorometholone eye drops, 3. Warm compresses, 4. Erythromycin ointment
Answer: 
