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: Orthopaedics
Triad of Fetty's syndrome does not include 
Select and explain. 
A. Osteoporosis, B. Rheumatoid Arthritis, C. Spleenomegally, D. Neutropenia
A: Osteoporosis
Answer: A: Osteoporosis 
Explanation: None