Final answer:
Lymphocytes are the most sensitive type of WBC to radiation, while granulocytes like neutrophils, eosinophils, and basophils are more resistant.
Step-by-step explanation:
The most sensitive type of white blood cell (WBC) to radiation is lymphocytes. Lymphocytes are a type of agranulocyte and are responsible for the adaptive immune response. When exposed to radiation, lymphocytes can be quickly damaged and their function impaired. In contrast, granulocytes like neutrophils, eosinophils, and basophils are generally more resistant to radiation damage.
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