All are absolute indications for amputation except,: (A) Gas gangrene, (B) Burger's gangrene, (C) Frost bite, (D) Diabetic gangrene
Answer is C. 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