This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Uveal Tract, Subject name: Ophthalmology
Lallo, 25 yr old man, presented with h/o of pain, redness & watering of left eye for last 1 day. There is also intolerance to light. Most probable diagnosis is- 
Select and explain. 
A. Keratitis, B. Acute anterior uveitis, C. Acute posterior uveitis, D. Simple glaucoma
B: Acute anterior uveitis
Answer: B: Acute anterior uveitis 
Explanation: Ans- B.