Which of the below is TRUE about diffusion and/or bulk transport?

Which of the below is TRUE about diffusion and/or bulk transport?
Diffusion is effective only over small distances; Bulk transport allows organisms to avoid limits to size imposed by diffusion
Bulk transport is effective only over small distances; Diffusion allows organisms to avoid limits to size imposed by bulk transport
Bulk transport is only present in animals; both animals and plants use diffusion
Bulk transport is used by single-celled organisms to eliminate wastes and obtain nutrients