What is the role of CD4+ T cells in the activation of B cells during the humoral immune response?

A They produce antibodies
B They activate macrophages
C They present antigens to B cells
D They provide co-stimulatory signals to B cells ✓

Explanation

CD4+ T cells play a crucial role in activating B cells by providing co-stimulatory signals, which is essential for the humoral immune response.

Source

Janeway's Immunobiology
Hematology Hematology: Blood Components Hematology: Blood Components Medium MEDICAL Confidence: high