A 50 year old male known case of myasthe-nia with erythemated shallow erosions with few blister and scales.Oral mucosa is not involved Immunopathology demon-strates IgG deposition on keratinocytes and auto antibodies Dsg - 1. The diagnosis is -

• A. Bullous pemphigoid
• B. Dermatitis herpetiformis
• C. Pemphigus valguries
• D. Pemphigus foliaceus