Proteins produced by the immune system to destroy substances containing antigens are called Antibodies.
Antibodies:
Antibodies seem to be substances or proteins that the immune response produces throughout the reaction to inflammation.
Antibodies play an essential role in the body's natural defense mechanism by destroying disease-causing germs as well as preventing them from invading human tissue.
Thus "Option A" is correct.
Find out more information about antibodies here:
https://brainly.com/question/905225
