The correct answer is option B.
Innate immunity is also called non-adaptive immunity.
What is innate immunity?
Innate immunity or non-adaptive immunity is a kind of defense mechanism that is meant to defend body against certain objects and particles.
Innate defense system protects our body against all types of antigens, foreign harmful particles as well as harmful bacteria and microorganisms.
Moreover, this system contains specific barriers that keeps pathogens and other dangerous material from entering the body.
To put it simply, our immune system has special front line warriors that defend the body and keep it safe and protected against germs.
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