White blood cells perform the role of providing protection against pathogens in the human body. Thus, the correct answer is A.
What are Pathogens?
Pathogens may be defined as kinds of microorganisms that induce numerous diseases in living entities.
White blood cells are one of the important parts of the immune system that assist the body to fight against infections or other diseases.
It includes neutrophils, eosinophils, basophils, monocytes, lymphocytes, etc. Each of the kinds of WBCs plays a specific role in protecting the body against pathogens.
Therefore, the correct option for this question is A.
To learn more about White blood cells, refer to the link:
https://brainly.com/question/13051716
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