Arrange the following steps of phagocytosis (a key mechanism of innate immunity) in the correct sequential order from start to finish: 1. Chemotaxis and adherence of the microbe to the phagocyte. 2. Ingestion of the microbe by pseudopods to form a phagosome. 3. Fusion of the phagosome with a lysosome to form a phagolysosome. 4. Digestion of the ingested microbe by lysosomal enzymes and reactive oxygen species. 5. Discharge of waste materials via exocytosis. Select the correct sequence:

Options:

• A: 2-1-3-4-5
• B: 1-3-2-4-5
• C: 1-2-4-3-5
• D: 1-2-3-4-5

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