Which comparison would best support the idea presented in this paragraph?

through the process of phagocytosis, specialized cells in the immune system engulf and destroy unwanted microorganisms in the blood. this serves to remove foreign bodies and fight infection. these cells, called phagocytes, first surround the microorganisms and then begin a series of chemical reactions that break them down.
a. as if in a war, the phagocytes battle the microorganisms for control of the immune system.
b. much like the process of digestion, the phagocytes "eat" and then digest the unwanted organisms.
c. the phagocytes act as tour guides, showing microorganisms where they need to reside.
d. acting like a cargo transport, the phagocytes move the unwanted organisms out of the body.

The comparison that would best support the idea presented in this paragraph  is B, "much like the process of digestion, the phagocytes 'eat' and then digest the unwanted organisms". First of all, it is necessary to know the meaning of "engulf". To engulf, according to the Collins dictionary, means to completely cover or hide something, often in a sudden way. That's why B is the best comparison. Phagocytes eat the microorganisms and then digest them.

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a is is the correct answer