<prompt> Which immunoglobulin combination is predominantly in pathogenesis of cryglobulinemic vasculitisIgA IgGIgM IgGIgA IgEIgE IgM  <response>: Answer- B. IgM IgGcryoglobulinemic vasculitis occurs when an aberrant immune response to hepatitis C infection leads to the formation of immune complexes consisting of hepatitis C antigens,polyclonal hepatitis C-specific IgG, and monoclonal IgM rheumatoid factor. 