Final answer:
To divide 24 hours by 3 and find the three times you would need to record the temperature, you can divide 24 by 3 to get 8. This means you would need to record the temperature every 8 hours.
Step-by-step explanation:
To divide 24 hours by 3 and find the three times you would need to record the temperature, you can divide 24 by 3 to get 8. This means you would need to record the temperature every 8 hours.
So the correct option is a) Every 8 hours.