Question

question 3 of 10
which letter marks the zone of inhibition?
a. a
b. d
c. b
d. c

Explanation:

The zone of inhibition is the area around an antimicrobial agent (like the blue dot labeled A) where microbial growth is prevented. In the diagram, the area labeled B is the region where no growth occurs (the clear area around the agent), which is the zone of inhibition.

Answer:

C. B