Which of the following usually accounts for the smallest percentage of leukocytes in a blood sample?
A. Neutrophils: 40-60% of leukocytes
B. Lymphocytes: 20-40% of leukocytes
C. Monocytes: 2-8% of leukocytes
D. Eosinophils: 1-4% of leukocytes
E. Basophils.
