This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Surgery
Cellulitis is 
Select and explain. 
A. A suppurative invasive infection of skin and subcutaneous tissues, B. A nonsuppurative invasive infection of tissues, C. Infection caused by Gram negative bacilli, D. Infection caused by anaerobic Streptococci
B: A nonsuppurative invasive infection of tissues
Answer: B: A nonsuppurative invasive infection of tissues 
Explanation: Ans. (b) A nonsuppurative invasive infection of tissues(Ref: Bailey and Love 27th Edition Page 48)* Cellulitis is a non suppurative invasive infection of Tissues, related to point of injury.* Poor localisation and spreading infection seen.* Caused by Beta Hemolytic Streptococci, Staphylococci and Clostridium perfringens.* Toxemia- Fever, Chills are common.* Blood Culture is negative.