The registered nurse in charge on the cardiac unit must float a nurse to the emergency department for the shift. Which nurse should be floated to the emergency department?

The nurse who has 4 years of experience in the operating room

The nurse who just transferred from critical care to the cardiac unit

The nurse who has worked in the gastrointestinal lab for 2 years and in the cardiac unit for 3 years

The nurse with 1 year of experience on the cardiac unit who has been on a week's sick leave.