Biology · Immunology

A child injures his toe, which then becomes infected with Staphylococcus aureus. The following statements are made about the events that follow over the course of a week: A. The pathogen is conveyed to draining lymph nodes by macrophages or dendritic cells. B. Danger signals are conveyed to high endothelial venules of draining lymph nodes through the fibroblastic reticular conduit system. C. Naive B cells and T cells enter draining lymph nodes from high endothelial venules by a process that is initiated by L-selectin-mediated rolling. D. Naive B cells exit circulation at the site of injury and undergo clonal expansion in response to bacterial LPS. Which one of the following options represents the combination of all correct statements?