Phagocytosis is defined as

A. Phagocytosis is defined as the feeding of protozoans.
B. the ingestion of solid material by a eukaryotic cell.
C. the uptake of liquid material by a eukaryotic cell.
D. cells of the immune system that ingest pathogens.

Explanation:

Phagocytosis: 1. It is the process by which various living cells known as phagocytes, ingest or engulf other  solid material or cells or particles.

2. The phagocyte may various kind, like a free-living single cellular organism, such as an amoeba, or it can be a one of the body cells, such as a some white blood cel l(WBC), which provide immunity to us.

3. Through phagoctytosis,  phagocytes cell engulf various particle, it is very important process in immune system.

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