general_pathology:immunology:adaptive_immunity

Choose the correct answer

B cells which have recognized a peptide, endocytosed and expressed the peptide in their MHC-class II molecules are activated how?

By helper T cells expressing CD40 binding to CD40L on the B cell

By helper T cells expressing B7 proteins

By helper T cells expressing CD40L and binding to CD40 on the B cell

By helper T cells expressing CD28

RC 0th Ed p 201-202