Final answer:
The infusion rate for a 1L IV bag administered over 8 hours is 125 mL/hour (option c).
Step-by-step explanation:
To determine the infusion rate of a 1L IV bag administered over 8 hours, we need to convert the time to minutes and divide the volume by the time.
Infusion rate = Total volume / Total time
Infusion rate = 1000 mL / 8 hours
Infusion rate = 125 mL/hour
Thus, the correct answer is 'c. 125mL/hour'.