Answer:
The average Olympic sprinter runs 8 m/s.
Step-by-step explanation:
Speed is defined as the change of an object from one position to another position with respect to the time taken. It is independent of direction and only depends on the change of its position.
In the context, all the other sentences has direction mentioned in the sentence except the sentence "the average Olympic sprinter runs 8 m/s". In this sentence, the speed of an Olympic sprinter id given i.e. 8 meter per second.