Answer:
its "A" reaction involves binding antigens to antibodiess
Explanation:
it is because An only comes before a vovle word
An immune reaction involves binding antigens to antibodies.
An immune reaction is a type of reaction that take place in the immune system if the body which involve binding of antigens to the antibodies to prevent foreign invaders.
Therefore, An immune reaction involves binding antigens to antibodies.
Learn more about immune reaction below.
https://brainly.com/question/16578495
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