Which immunoglobulin is generally the most abundant antibody in human blood serum?

Options

  • A. IgA
  • B. IgE
  • C. IgG
  • D. IgM
  • E. IgD

Correct Answer (Detailed Explanation is Below)

C. IgG

Detailed Explanation

IgG is the most abundant immunoglobulin in normal human serum and is important in systemic immune defense.