Similar lesions are present on the contralateral leg, and this patient also reports joint pain and tarry stools. A biopsy for direct immunofluorescence is most likely to show which of the following?
A. IgA deposition in the dermal papillae
B. Perivascular IgA deposition
C. Perivascular IgG deposition
D. Linear IgA deposition along the basement membrane zone
E. Linear IgG deposition along the basement membrane zone
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