How do vaccinations assist immune response? a.they assist phagocytes in engulfing and destroying pathogenic microbes. b.they trigger immune response to white blood cells recognize pathogens. c.they flush harmful pathogens out of the body by increasing the body’s reflexes. d.they form a protective barrier to block the entrance of pathogens into the body.

Vaccinations trigger an immune response to help white blood cells recognize pathogens. That is why, in vaccinations, you will be given a week or dead pathogen- just so your body knows how to respond to it and find it off when it is alive and hurting your body. 

"B" is the correct answer.

I hope this helps! 

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