A 25-year-old female presents with pruritic, pink-red blotches along her extremities after starting a new antibacterial drug. Several of the lesions are pink-red rings with pale centers. In this disorder, which of the following is deposited in the superficial microvasculature of the skin and oral mucous membranes?
• A. IgM
• B. IgD
• C. IgG
• D. IgE
• E. IgA
• A. IgM
• B. IgD
• C. IgG
• D. IgE
• E. IgA