Answer:
Option 'd' => bacterial infection.
Explanation:
The immunity against diseases or diseases fighting is a function of white blood cell and one of the types of white blood cell is the neutrophils mentioned in this question. The other types of white blood cells include the following; the Basophils, the Lymphocytes, the Eosinophils, and the Monocytes. Although, there are other types of white blood cell. The ones mentioned above are the five basic ones.
High count of neutrophils means that one is under the risk of contracting diseases. High count of neutrophils occurs as a result of Blood cell-related cancers, Thyroiditis, rheumatoid arthritis and so on.
