Answer:
Option-(D):T cells attack antigens on foreign substances and B cells produce antibodies.
Step-by-step explanation:
- The defense mechanism or we can say the immune system is divided into many layers of cells, as the primary protection for the human body is the integumentary system or simply skin and the rest of the defense lines follow up. As, there is a proper channel for the different molecules to pass through the body, while the pathogens or those hazardous molecules which are required to be removed are identified with the help of the B-cells and the T-cells kill or eliminates them to avoid any further damage to the human body.
- However, both of the cells are termed to be related to the interstitial spaces inside the human body, which is also called as the lymph and the cells are called as lymphocytes.