Both B & T lymphocytes are produced in the bone marrow; however, only the T lymphocytes travel to the ______ and mature there.ASpleenBThymusCPituitary glandDAdrenal glandAnswer: B. Thymus Read Explanation: B lymphocytes mature in the bone marrow whereas T lymphocytes are produced in the bone marrow but mature in the thymus gland.Both the lymphocytes recognize and destroy any pathogen that enters the bloodstream. Read more in App