Answer: A)
Explanation:
Phagocytosis is a process wherein the pseudopodia of the amoeba extend around the food particle and enclosed it inside a food vacuole. This combines with digestive enzymes like lysosomes to easily absorb the nutrients.. This process includes the phagocytes in this case - amoeba.
Phagocytosis is used to remove cell debris or pathogens such as bacteria or dead cells that have to be digested.