Anti-bodies are produced by:

Explanation

B-lymphocytes: B-lymphocytes, also called B-cells, are a type of white blood cell that plays a central role in the adaptive immune response. When a pathogen (like a virus or bacteria) enters the body, B-cells recognize specific antigens (molecules on the surface of the pathogen) and produce antibodies. These antibodies are proteins that bind to the antigens and help neutralize or destroy the pathogen. B-cells are essential for the immune system's ability to remember and respond to previously encountered pathogens, leading to immunity. In summary, antibodies are produced by B-lymphocytes as part of the adaptive immune response, which helps the body fight off infections and provides immunity against future encounters with the same pathogen.