Pathology Immunity e4191016 Which is a flow cytometric B cell marker? A CD 2 B CD 3 C CD 7 D CD 19 High-Yield Explanation * B cell markers are CD 19, 20, 21 and 23.* TH cell markers are CD 4, 3, 7, 2* TC cell markers are CD 8, 3, 7, 2* NK cell markers are CD 2, 16, 56