Which one of the following immune system components does not correctly match with its respective role?

• A

  Interferons - secreted by virus infected cells and protects non - infected cells from further viral infection
• B

  B-lymphocytes - produce antibodies into blood in response to pathogens to fight with them
• Correct answer
  C

  Macrophages - mucus secreting cells that trap microbes entering in the body
• D

  IgA - present in colostrum in early days of lactation to protect infant from diseases

Hence, the correct answer is option: 'C'.