What does "narrow spectrum antimicrobial" mean?

A) The antimicrobial is effective for a very short time.
B) The antimicrobial is effective against a few microbes.
C) The antimicrobial can only be administered to a small segment of the population.
D) The antimicrobial is activated by a specific wavelength in the visible spectrum.
E) The antimicrobial is effective on all bacteria but not eukaryotes.


B

Biology & Microbiology

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