Leucocyte common antigen: (A) CD 14, (B) CD 15, (C) CD 23, (D) CD 45
Answer is D. Antigen DesignationNormal Cellular DistributionCD14MonocytesCD15Granulocytes; Reed-Sternberg cells and variantsCD23Activated mature B cellsCD45All leukocytes; also known as leukocyte common antigen(LCA)Ref: Robbins and Cotran Pathologic Basis of Disease; 9th edition; Chapter 13; Diseases of White Blood Cells, Lymph Nodes, Spleen, and Thymus; Page no: 590