Ms Jackie Robinson Is a Young Woman Who Has Been

Ms Jackie Robinson is a young woman who has been admitted to hospital following a motor vehicle accident in which she sustained fractures to her pelvis and left femur. Jackie is a diabetic and has a three-week-old baby as a boarder. She has an intravenous infusion of 1 L of fluid and the drop factor for the giving set is 20 drops/ml. You have been assigned to care for her and the baby, under the guidance of a registered nurse.
-She has an intravenous infusion of 1 L of 0.9% of sodium chloride which is infusing at the rate of 40 drops/minute. The volume/hour that is currently being delivered is

A) 80 ml
B) 100 ml
C) 120 ml
D) 140 ml