Which transport mechanisms require the formation of a vesicles to transport material into or out of the cell?

The answer is D because In exocytosis, materials are exported out of the cell via secretory vesicles. In this process, the Golgi complex packages macromolecules into transport vesicles that travel to and fuse with the plasma membrane. This fusion causes the vesicle to spill its contents out of the cell. Exocytosis is important in expulsion of waste materials out of the cell and in the secretion of cellular products such as digestive enzymes or hormones.

 Two transport mechanisms that lead to the formation of a vesicle inside the cell wouled be Exocytosis and Endocytosis
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