The clonal selection theory implies that:
a B cell has multiple types of antigen receptors.
brothers and sisters have similar immune responses.
antigens activate specific lymphocytes.
the body selects which antigens it will respond to.

Antigens activate specific lymphocytes

Explanation:

The clonal selection theory (also named the theory of antibody activation) is used in inmunogenetics to understand the functions of the lymphocytes in the immune system. From this theory is it possible to understand the vast diversity of antibodies in the blood during the initiation of the immune response

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.