The correct option is C Both A and B
Endocytosis and exocytosis are visible in animal cells and protists like protozoa. In these organisms, bulk transport across plasma membrane refers to the transport of large quantities of micro molecules and macromolecules and food particles. it is accompanied by the formation of transport or carrier vesicles. The latter are endocytotic and perform bulk transport inwardly. The phenomenon is called endocytosis. Endocytosis is of two types. They are pinocytosis and phagocytosis. Exocytic vesicles perform bulk transport outwardly. It is called as exocytosis. Exocytosis performs secretion and excretion.