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
Among the following options Acute Anterior uveitis is most commonly associated with 
Select and explain. 
A. Reiter Syndrome, B. Ankylosing spondylitis, C. Psoriatic arthritis, D. Juvenile Rheumatoid arthritis
B: Ankylosing spondylitis
Answer: B: Ankylosing spondylitis 
Explanation: Acute anterior Uveitis with arthritis is most commonly seen in Ankylosing spondylitis.