Answer: C. 0.7 hours.
Explanation:
We know that the formula we use to find the distance is given by :-
![\text{Time}=\frac{\text{Distance}{\text{Time}}]()
Given : France’s M. Garisoain walked on stilts for 4.97 miles from Bayonne to Biarritz,France, at an average speed of 7.10 miles per hour.
Then, the time taken to walk that distance:-

Hence, it him took 0.7 hours to walk that distance.