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
False about cellulitis 
Select and explain. 
A. Abscess if any should be managed conservatively, B. Causes SIRS, C. Infection of subcutaneous tissue, D. Caused by strep. pyogenes
A: Abscess if any should be managed conservatively
Answer: A: Abscess if any should be managed conservatively 
Explanation: It is spreading inflammation of subcutaneous and fascial planes.  
 Infection may follow a small scratch or wound or incision.

Causative Agents: Commonly due to Streptococcus pyogenes and other Gram +ve organisms.
Sequelae

Infection can get localized to form a pyogenic abscess. 
Infection can spread to cause bacteraemia, septicaemia, pyaemia.    
Often infection can lead to local gangrene.