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
All are absolute indications for amputation except, 
Select and explain. 
A. Gas gangrene, B. Burger's gangrene, C. Frost bite, D. Diabetic gangrene
C: Frost bite
Answer: C: Frost bite 
Explanation: Indications of amputation
I - Absolute indications

Burger's gangrene
Diabetic gangrene 
Irreparable loss of blood supply of injured limb
Fulminant infection / gas gangrene

Relative indications

Infections
Trauma
Burns
Frost bite
Tumors