Multiple choice

Which of the following is the rarest type of WBC in the human blood?

  1. Basophil

  2. Neutrophil

  3. Eosinophil

  4. Monocytes
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A Correct answer
Explanation

Basophils are the rarest white blood cells, comprising only 0.5-1% of total WBC count. Neutrophils are most abundant (60-70%), eosinophils make up 1-3%, and monocytes account for 2-8%. This rarity makes basophils easily identifiable in blood smears.

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