Question

5 of 14
one proven method for keeping your hands clean in order to prevent bacterial transfer is the
15 second scrub
15 second rinse
20 second scrub
20 step sanitizer

Explanation:

According to health guidelines, a 20 - second scrub is a recommended method for effective hand - cleaning to prevent bacterial transfer. This duration allows for thorough cleaning of all areas of the hands. A 15 - second scrub may not be sufficient, a rinse alone (15 - second rinse) does not effectively remove bacteria as scrubbing with soap does, and "20 step sanitizer" is not a standard recognized method.

Answer:

20 second scrub