Which type of blood cell is the first to arrive at a bacterial infection? A. Neutrophil
B. Platelet
C. Macrophage
D. B cell

The most numerous of the granulocytes—making up 50 to 80 percent of all white cells—are neutrophils. They are often one of the first cell types to arrive at a site of infection, where they engulf and destroy the infectious microorganisms through a process called phagocytosis.

Explanation: the answer is A) Neutrophil

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