In metal forming process, deformation may be ____, ____, ____, or ____. bulk flow in three dimensions; simple shearing; simple or compound bending; complex combination of these bulk flow in one dimensions; simple shearing; simple or compound bending; complex combination of these bulk flow in three dimensions; simple shearing; simple or compound drawing; complex combination of these bulk flow in three dimensions; simple cutting; simple or compound bending; complex combination of these bulk flow in three dimensions; simple shearing; simple or compound bending; simple combination of these