What Event Initiates an Adaptive Immune Response

question 39

Multiple Choice

What event initiates an adaptive immune response?

• A)The interaction of a B cell with a T_H cell
• B)The expression of cytokines CD4 or CD8
• C)The production of MHC class I or II molecules
• D)The interaction of a naïve T cell with an antigen-presenting cell
• E)The phagocytosis of a pathogen by a macrophage

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