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62208 Pathology

During the physical examination of a 22-year-old man, a purified protein derivative isolated from Mycobacterium tuberculosis is injected into the skin. Three days later, the injection site appears raised and indurated. Which of the following glycoproteins was directly involved in antigen presentation during the initiation phase of delayed hypersensitivity in this patient?

AClass III HLA molecules
BNon-HLA dependent antigen presentation
CClass I HLA molecules
DClass II HLA molecules
Pathology
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