Which of the following statement(s) is/are correct regarding pathogens? I. A pathogen or an infe...

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Which of the following statement(s) is/are correct regarding pathogens?
I. A pathogen or an infectious agent is a microorganism, such as a virus, bacterium, fungus that causes disease in its host.

II. Pathogens multiply in our body and interfere with the normal vital activities, resulting in morphological and functional damage.
(a) Only I
(b) Only II
(c) I and II
(d) None of these
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