NDA General Ability Question (2025) — Solution

Step-by-step solution

Antibodies are proteinaceous molecules produced by B-lymphocytes in response to pathogens. B-lymphocytes differentiate into plasma cells, which secrete a large number of antibodies into the blood to fight infections. Neutrophils and monocytes are phagocytic cells that engulf and destroy foreign organisms. Eosinophils are associated with allergic reactions and immunity against certain parasites. Therefore, lymphocytes are the blood cells that secrete antibodies during an immune response. Answer: Lymphocytes