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Among the factors deciding how well a disinfectant works, one is the length of:

AExposure task
BExposure term
CExposure time
DExposure tube
Answer & Solution
Correct answer: C. Exposure time
1. A quick wipe leaves microbes behind. 2. Contact must last long enough to act. 3. So the length of exposure time matters. _Source: OpenStax Microbiology, Chapter 13, Control of Microbial Growth._
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