Which formed element arises from the lymphoid stem cell line rather than the myeloid line?

1. The hemopoietic stem cell splits into two more specialised lines, lymphoid and myeloid. 2. The lymphoid line produces only lymphocytes: T cells, B cells and natural killer cells. 3. Natural killer cells are therefore the only lymphoid product among the four options. 4. Erythrocytes, megakaryocytes and the granular leukocytes including basophils all descend from the myeloid line. 5. The basophil is the sharpest trap, because it is a leukocyte and candidates often assume all leukocytes are lymphoid. _Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 18 "The Cardiovascular System: Blood", section 18.2 Production of the Formed Elements_