This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Joint disorders, Subject name: Orthopaedics
CASPAR criteria is used in diagnosis 
Select and explain. 
A. Psoriatic ahritis, B. Rheumatoid ahritis, C. Ankylosing spondylitis, D. Reactive Synovitis
A: Psoriatic ahritis
Answer: A: Psoriatic ahritis 
Explanation: Classification criteria for Psoriatic ahritis is used in the diagnosis of psoriatic ahropathy Refer : maheswari 9th ed