Neutrophils are a type of granulocyte and are the most common type of WBC found in the human body. They play a crucial role in the immune response, particularly in defending against bacterial infections. Neutrophils are highly mobile and are among the first cells to arrive at the site of infection or inflammation.
While all the options listed are types of WBCs, neutrophils are the most abundant, accounting for approximately 55-70% of the total WBC count in a healthy individual.
Therefore, the correct answer is (C) Neutrophils.