Question

During the cell interactions involved in generating a cytotoxic T cell response, the
T helper cell receives the necessary signal 2 from an antigen-presenting cell through
which of the following?
(a)
IL-2 with IL-2R
(b) B7 with CD-28
(c) TCR with MHC Class I
(d) IgD with antigen​

Answer 1

Answer:

b is the correct answer I thik ohk