The correct option is B Mast cell
Mast cells are immune cells of the myeloid lineage and are present in connective tissues throughout the body.
They are very similar to basophil (granulocytes – a class of white blood cells in blood). Both are granulated cells that contain histamine and heparin, an anticoagulant. They share functional similarities and are involved in immediate hypersensitivity reactions, as well as in longterm inflammatory or immunologic responses.