The specific proteins produced by cell B in response to the foreign substance are antibodies.
What are antibodies?
Antibodies are specific proteins produced by the immune cells of the body in response to a foreign substance called antigen which produces the immune response.
Antibodies are released by immune cells such as B cells.
The antibodies bind to antigen and tag them for destruction by phagocytes.
Therefore, cell B will produce antibodies.
Learn more about antibodies at: https://brainly.com/question/15382995