Which Action by the Nurse Demonstrates Correct Hand-Hygiene Practice

Which action by the nurse demonstrates correct hand-hygiene practice?

A) Letting hand sanitizer dry for a full minute before applying gloves
B) Keeping hands and wrists above the level of the elbows while washing
C) Scrubbing hands and nails for at least 15 seconds using plenty of soap
D) Making sure that the water is hot before wetting the hands and wrists