Based on the information provided, none of the participants ran 212 km in 45 minutes. The distances and times shown for the participants are as follows:
- Bella ran 3.5 km in 45 minutes.
- Ruby ran 2.5 km in 40 minutes.
- Greg ran 2.5 km in 45 minutes.
- Paul ran 1 km in 25 minutes.
If you meant to ask which participant ran the furthest in those 45 minutes, that would be Bella, who covered 3.5 km.
Let me know if you have any more questions!