▶️ Answer/Explanation
The cell labelled $X$ is a phagocyte, specifically a neutrophil, identifiable by its characteristic multi-lobed nucleus and granular cytoplasm. In contrast, lymphocytes typically have a large, circular nucleus that fills most of the cell. The primary role of a phagocyte in the immune system is to identify, move towards, and engulf pathogens through a process called phagocytosis. Once engulfed, the pathogen is digested by enzymes. Options $B$ and $D$ are incorrect because antibody production is the function of lymphocytes, not phagocytes.
✅ Answer: (C)
✅ Answer: (C)
