Answer: Option 2 foreign antigens
Explanation:
Antigens are proteins that are found on the surface of a pathogen and white blood cells (leukocytes) are the cells of the immune system which helps fight infection and protect the body from foreign antigens.
Whenever a foreign antigen enters the body, a type of white blood cell called as the lymphocyte recognizes it and then produces antibodies against it, to generate an immune response.
So, an immune response is primarily due to white blood cells recognizing foreign antigens.
An immune response is primarily due to the body's white blood cells recognizing the foreign antigens. So, the correct option is B.
It is a type of response that the body gives against substances it recognizes as harmful or foreign.
These foreign substances or molecules that enter our bodies are called antigens. Antigens are proteins that are found on the surface of any pathogens and are recognized by the white blood cells. These cells fight against infection and provide protection from foreign molecules.
White blood cells (lymphocytes) also play a critical role in the formation of specific antibodies against a particular pathogen.
Therefore, an immune response is primarily due to the body's white blood cells recognizing the foreign antigens.
To learn more about an Immune system, refer to the link:
https://brainly.com/question/6612564
