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: Medicine
All are seronegative (spondyloepiphyseal) ahritis with ocular manifestations, EXCEPT: 
Select and explain. 
A. Ankylospondilitis, B. Ritter's disease, C. Rheumatoid ahritis, D. Psoriatic ahritis
C: Rheumatoid ahritis
Answer: C: Rheumatoid ahritis 
Explanation: Answer is C (Rheumatoid ahritis): Rheumatoid ahritis is not a seronegative spondyloahropathy. Seronegative spondyloahropathies Ankylosing spondylitis Reactive Ahritis (and Reiter's syndrome) Psoriatic Ahritis and spondylitis Enteropathies Ahritis (Ahropathy of inflammatory bowel disease) Undifferentiated spondylorathropathy