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: Skin
A 25-year-old woman develops extensive pruritic wheals following ingestion of seafood to which she was allergic. While these lesions are usually not biopsied, a biopsy would probably show which of the following features? 
Select and explain. 
A. Dilated superficial lymphatic channels, B. Granular complement and IgG at dermal/epidermal junction, C. Microscopic blisters, D. Munro microabscesses
A: Dilated superficial lymphatic channels
Answer: A: Dilated superficial lymphatic channels 
Explanation: Uicaria (hives) are pruritic wheals that form after mast cells degranulate and trigger localized dermal edema with dilated superficial lymphatic channels. The mast cell degranulation is sometimes, but not always, triggered by IgE-antigen interactions. Granular complement and IgG deposition at the dermal/epidermal junction is a characteristic of systemic lupus erythematosus. Microscopic blisters are a characteristic of dermatitis herpetiformis. Munro abscesses are a characteristic of psoriasis. Ref: Kaplan A.P. (2012). Chapter 38. Uicaria and Angioedema. In L.A. Goldsmith, S.I. Katz, B.A. Gilchrest, A.S. Paller, D.J. Leffell, N.A. Dallas (Eds), Fitzpatrick's Dermatology in General Medicine, 8e.