What is the trans-phase of the Golgi apparatus, and what happens there?

The trans-phase is the final stage of the Golgi apparatus, where vesicles containing modified proteins and lipids exit the organelle for transport to other parts of the cell or for secretion. The development of cisternae in the Golgi apparatus occurs from the cis face to the trans face direction. The cis face is the organelle's entry point, while the trans face is the exit point. Therefore, the exit phase is the correct answer.