Answer:
The correct answer is endocytosis.
Step-by-step explanation:
Endocytosis is a kind of active transport that allows the cells to engulf large particles, which does not possess the tendency to cross through the membrane. It is a bulk system of transportation. The reverse of endocytosis is exocytosis in which the cell removes huge particles to the external surrounding of the cell. The amoeba mentioned in the question follows endocytosis in order to engulf its food.