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The Helper T-Lymphocyte expresses ______________ and ______________ on its surface. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a CD-4; T-cell receptor b CD-8; T-cell receptor c Class II MHC; CD-4 d Class II MHC; CD-8 e Class II MHC; T cell receptorThe Helper T-Lymphocyte expresses ______________ and ______________ on its surface. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a CD-4; T-cell receptor b CD-8; T-cell receptor c Class II MHC; CD-4 d Class II MHC; CD-8 e Class II MHC; T cell receptor