This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
Ramu, age 10 years present with itching in his eye, foreign body sensation & ropy discharge since several months. These symptoms are more prominent in summer. Most probable diagnosis is – 
Select and explain. 
A. Vernal conjunctivitis, B. Fungal keratoconjunctivitis, C. Viral conjunctivitis, D. Trachoma
A: Vernal conjunctivitis
Answer: A: Vernal conjunctivitis 
Explanation: Information in this question is:-


Age 10 years
Itching, foreign body sensation
Ropy discharge (characteristic of spring catarrh)
Exacerbation during summer (characteristic of spring catarrh)


Diagnosis is vernal keratoconjunctivitis (spring catarrh)