Memory T cells, effector T cells, and naïve T cells share several characteristics.Which of the following descriptions could ONLY be said of memory T cells?
A) Memory T cells are activated by any APC.
B) Memory T cells are only found in one location and do not circulate.
C) Memory T cells express CD44, CD62L, and CCR7.
D) Memory T cells recognize MHC class I or class II peptides displaying antigen molecules.
E) Memory T cells depend upon costimulatory signals from CD2/ LFA-3, CD45R/ CD22, and LFA-1/ ICAM-2.
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