- A T cells, which instead attack infected cells directly
- B Macrophages, which engulf and digest pathogens
- C B cells (plasma cells)
- D Neutrophils, which respond first to acute infection
Correct answer: C. B cells (plasma cells)
Explanation: B cells differentiate into plasma cells that produce antibodies (immunoglobulins). Each plasma cell produces one specific antibody.
Concept context
Innate and adaptive immunity, B cells, T cells, antibodies, vaccines, and immune disorders. Critical for NEET.