This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Conjunctiva, Subject name: Ophthalmology
Swimmer after coming out frm swimming pool presents with redness and mucopurulent discharge. There is no history of contact lens wear. On examination, no corneal involvement seen. Probable diagnosis is - 
Select and explain. 
A. Acanthamoeba keratitis, B. Adul inclusion conjunctivitis, C. Vernal keratoconjunctivitis, D. Angular conjunctivitis
B: Adul inclusion conjunctivitis
Answer: B: Adul inclusion conjunctivitis 
Explanation: This is case of Swimming pool conjunctivits/granuloma-Which is adult inclusion conjunctivitis caused by chlamydia trachomatis. Ref: Khurana 7th/e p.73 & 4th/e p.63,68