This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2019, Subject name: Surgery
Long term diabetic PATIENT with blisters walked barefoot few miles on hot sand. He presented with this clinical condition. What is the most probable diagnosis? 
Select and explain. 
A. Diabetic foot, B. Burn, C. Necrotizing Fasciitis, D. Cellulitis
C: Necrotizing Fasciitis
Answer: C: Necrotizing Fasciitis 
Explanation: Necrotizing fasciitis In necrotizing fasciitis, necrosis of the subcutaneous tissue and fascia, with typical sparing of the underlying muscle Most common organism responsible for necrotizing fasciitis is Group A Beta Hemolytic Streptococcus- polymicrobial infection Severe pressure like pain out of propoion to visible signs distinguishes necrotizing fasciitis from cellulitis. Erythema, leukocytosis, and swelling are present in both cellulitis and necrotizing fasciitis