This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Cells that are identified by the presence of immunoglobulins on the surface include - 
Select and explain. 
A. B cells, B. NK cells, C. Monocytes, D. Neutrophils
A: B cells
Answer: A: B cells 
Explanation: The B-cell receptor or BCR is a transmembrane receptor protein located on the outer surface of B cells. The B-cell receptor is composed of two parts: i) A membrane-bound immunoglobulin molecule of one isotype (IgD, IgM, IgA, IgG, or IgE). ii) Signal transduction moiety.