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
Which of the following statement regarding Rheumatoid ahritis is false? 
Select and explain. 
A. It is symmetrical involving small and large joints, B. Pulmonary nodules are present, C. Juxta aicular osteoporosis may be present, D. None of the above
D: None of the above
Answer: D: None of the above 
Explanation: Rheumatoid ahritis is a chronic systemic inflammatory disease, with symmetric involvement of small and large joints. Joint stiffness lasting for more than 30minutes is the prominent symptom. Characteristic Xray findings include juxta aicular osteoporosis, joint erosions and joint space narrowing. Rheumatoid factor and antibodies to citrullinated peptides are seen in 70 - 80% cases. Reference: Harrison's Principles of Internal Medicine 18e chapter 321.