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: Pathology
Impetigo is characterized by all except 
Select and explain. 
A. Superficial bacterial infection commonly due to staph. Aureus, B. Microscopic feature is accumulation of lymphocyte beneath the stratum corneum, C. Blister formation is due to bacterial production of a toxin that cleaves Desmoglein 1, D. Typically involves exposed skin mainly hands and face
B: Microscopic feature is accumulation of lymphocyte beneath the stratum corneum
Answer: B: Microscopic feature is accumulation of lymphocyte beneath the stratum corneum 
Explanation: Characteristic microscopic feature in impetigo is accumulation of neutrophils beneath the stratum corneum producing a subcorneal pustule.