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: Surgery
All except one are unfavourable signs in early Hodgkin's Lymphoma 
Select and explain. 
A. Elevated ESR, B. Extranodal disease, C. Stage A, D. Four or more regions involved
C: Stage A
Answer: C: Stage A 
Explanation: Unfavourable signs in early Hodgkin's Lymphoma:-

Large mediastinal mass
Extranodal disease
Elevated ESR
4 or more involved regions
Presence of B symptoms.