MICROANATOMY

Detailed explanation-1: -Plasma cells are a type of lymphocyte which develop from the B cells or B lymphocytes. They are formed in the lymphoid organs and produce antibodies that are specific to an antigen. From the lymphoid organ, the antibodies travel to the plasma of the blood to fight a pathogen attack. Hence, option (B) is correct.

Detailed explanation-2: -Any foreign substance that invades the body is called an antigen; the T-lymphocytes release antibodies that act against a particular foreign substance. In the human body, T-lymphocytes provide cell-mediated immunity, which uses various means to attack any antigen that may invade the body.

Detailed explanation-3: -B cells produce antibodies, or Y-shaped chromosomes that are created by the immune system to stop foreign substances from harming the body. B cells have B cell receptors (BCRs) on their surface, which they use to bind to a specific protein.

Detailed explanation-4: -B-cells produce antibodies that destroy antigens or the pathogen associated with a particular antigen. B-cells can also remember specific antigens so your immune system can launch an effective defense if the pathogen ever enters your body again.