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When washing your hands, the correct amount of time to scrub your hands is approximately: select one:
a. 30 seconds.
b. 5 seconds.
c. 10-15 seconds.
d. 1 minute?

Answer :

kritter1
Most research claim at least 20 seconds, therefore 5 sec and 10-15 seconds are too less. 30 seconds seems to be the most fitting answer. 

Hope I helped :)

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