What are the steps, in order, of the double hand washing rule?
a) Wet hands, apply soap, lather and scrub for at least 20 seconds, rinse, repeat steps 2 and 3.
b) Apply soap, scrub for at least 5 seconds, rinse, repeat steps 2 and 3.
c) Apply soap, rinse, dry hands, repeat steps 2 and 3.
d) Wet hands, lather and scrub for at least 10 seconds, rinse, repeat steps 2 and 3.
