Question

when washing your hands, you must scrub for how long? a. at least 20 seconds. b. five seconds. c. one minute. d. not more than 5 minutes.

Explanation:

Proper hand - washing guidelines recommend scrubbing hands for at least 20 seconds to effectively remove germs. Five seconds is too short, one minute and more than 5 minutes are excessive for regular hand - washing.

Answer:

A. At least 20 seconds