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: Unknown
Level of splitting in epidermolysis bullosa simplex is - 
Select and explain. 
A. Intra epidermal, B. Sub epidermal, C. Subcorneal, D. None of the above
A: Intra epidermal
Answer: A: Intra epidermal 
Explanation: Ans is 'a' i.e. Intraepidermal Important vesiculobullous disordersIntraepidermalo Pemphigus (vulgaris, P. foliaceous. erythematosus )o Staphylococcal scalded skin syndromeo Bullous impetigoo Friction blisterso Hailey Hailey disease (familial benign pemphigus)o Subcorneal pustular dermatosiso Eczematous dermatitiso Darrier's diseaseo Erythema multi formeo Epidermolysis bullosa simplexo Infections - HSV /VZV, Molluscum contagiousSubepidermalo Bullous pemphigoido Dermatitis herpetiformiso Deep bumso Epidermolysis bullosa acquisitao Porphyria cutanea tardao Junctional epidermolysis bullosao Toxic epidermal necrolysis